Fix tooltip arrow's high contrast border in RTL

[behowell]

Current Behavior

The high contrast arrow border for tooltip is wrong in RTL:

New Behavior

Don't flip the border's side for RTL, since RTL is already handled by popper.

[codesandbox-ci]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

Latest deployment of this branch, based on commit 1948c5d:

Sandbox	Source
@fluentui/react 8 starter	Configuration
@fluentui/react-components 9 starter	Configuration

[fabricteam]

📊 Bundle size report

Package & Exports	Baseline (minified/GZIP)	PR	Change
react-components react-components: Accordion, Button, FluentProvider, Image, Menu, Popover	165.872 kB 46.984 kB	165.72 kB 46.951 kB	-152 B -33 B
react-menu Menu (including children components)	102.919 kB 31.787 kB	102.961 kB 31.798 kB	42 B 11 B
react-menu Menu (including selectable components)	105.17 kB 32.144 kB	105.212 kB 32.153 kB	42 B 9 B
react-popover Popover	95.459 kB 29.031 kB	95.265 kB 28.98 kB	-194 B -51 B
react-tooltip Tooltip	45.167 kB 15.671 kB	44.973 kB 15.628 kB	-194 B -43 B

Unchanged fixtures

Package & Exports	Size (minified/GZIP)
react-components react-components: FluentProvider & webLightTheme	32.297 kB 10.592 kB
react-positioning usePopper	22.808 kB 7.935 kB

_{🤖 This report was generated against 7c50f4d58b4ba834f667fd69ddee2701ad0745fb}

[size-auditor]

Asset size changes

Size Auditor did not detect a change in bundle size for any component!

Baseline commit: 4f22b6dad04ea37eb53e4af23c73d2de4db512a2 (build)

[fabricteam]

Perf Analysis (@fluentui/react)

No significant results to display.

All results

Scenario	Render type	Master Ticks	PR Ticks	Iterations	Status
Avatar	mount	772	720	5000
BaseButton	mount	799	787	5000
Breadcrumb	mount	2311	2094	1000
ButtonNext	mount	411	431	5000
Checkbox	mount	1337	1346	5000
CheckboxBase	mount	1158	1138	5000
ChoiceGroup	mount	4087	4045	5000
ComboBox	mount	854	799	1000
CommandBar	mount	8779	9173	1000
ContextualMenu	mount	14478	14517	1000
DefaultButton	mount	981	1003	5000
DetailsRow	mount	3339	3267	5000
DetailsRowFast	mount	3196	3076	5000
DetailsRowNoStyles	mount	3094	2932	5000
Dialog	mount	2182	2263	1000
DocumentCardTitle	mount	151	155	1000
Dropdown	mount	2789	2783	5000
FluentProviderNext	mount	1588	1578	5000
FluentProviderWithTheme	mount	136	132	10
FluentProviderWithTheme	virtual-rerender	99	103	10
FluentProviderWithTheme	virtual-rerender-with-unmount	173	180	10
FocusTrapZone	mount	1592	1595	5000
FocusZone	mount	1568	1514	5000
IconButton	mount	1540	1547	5000
Label	mount	294	321	5000
Layer	mount	2506	2525	5000
Link	mount	420	418	5000
MakeStyles	mount	1402	1408	50000
MenuButton	mount	1282	1247	5000
MessageBar	mount	1747	1727	5000
Nav	mount	2825	2857	1000
OverflowSet	mount	973	926	5000
Panel	mount	2179	2016	1000
Persona	mount	757	741	1000
Pivot	mount	1222	1261	1000
PrimaryButton	mount	1140	1130	5000
Rating	mount	6624	6467	5000
SearchBox	mount	1171	1202	5000
Shimmer	mount	2142	2229	5000
Slider	mount	1717	1653	5000
SpinButton	mount	4360	4223	5000
Spinner	mount	400	397	5000
SplitButton	mount	2735	2697	5000
Stack	mount	478	481	5000
StackWithIntrinsicChildren	mount	1989	2008	5000
StackWithTextChildren	mount	4513	4492	5000
SwatchColorPicker	mount	9779	9828	5000
TagPicker	mount	2241	2217	5000
TeachingBubble	mount	11322	11086	5000
Text	mount	388	383	5000
TextField	mount	1199	1190	5000
ThemeProvider	mount	964	1045	5000
ThemeProvider	virtual-rerender	536	549	5000
ThemeProvider	virtual-rerender-with-unmount	1609	1496	5000
Toggle	mount	728	723	5000
buttonNative	mount	129	132	5000

Perf Analysis (@fluentui/react-northstar)

Perf tests with no regressions

Scenario	Current PR Ticks	Baseline Ticks	Ratio
AttachmentMinimalPerf.default	148	132	1.12:1
HeaderMinimalPerf.default	312	283	1.1:1
PortalMinimalPerf.default	160	150	1.07:1
SkeletonMinimalPerf.default	309	289	1.07:1
TreeWith60ListItems.default	158	149	1.06:1
VideoMinimalPerf.default	555	523	1.06:1
ButtonMinimalPerf.default	155	148	1.05:1
DividerMinimalPerf.default	320	305	1.05:1
LabelMinimalPerf.default	338	322	1.05:1
ProviderMinimalPerf.default	993	948	1.05:1
AvatarMinimalPerf.default	170	164	1.04:1
RadioGroupMinimalPerf.default	391	376	1.04:1
RefMinimalPerf.default	206	199	1.04:1
AttachmentSlotsPerf.default	913	888	1.03:1
CardMinimalPerf.default	484	469	1.03:1
ChatMinimalPerf.default	637	618	1.03:1
DatepickerMinimalPerf.default	4723	4602	1.03:1
LayoutMinimalPerf.default	319	311	1.03:1
ListCommonPerf.default	530	514	1.03:1
ListNestedPerf.default	460	448	1.03:1
MenuButtonMinimalPerf.default	1398	1361	1.03:1
ReactionMinimalPerf.default	330	321	1.03:1
TextMinimalPerf.default	303	294	1.03:1
CustomToolbarPrototype.default	3440	3340	1.03:1
CarouselMinimalPerf.default	405	397	1.02:1
ChatDuplicateMessagesPerf.default	263	259	1.02:1
DialogMinimalPerf.default	655	643	1.02:1
HeaderSlotsPerf.default	657	643	1.02:1
LoaderMinimalPerf.default	587	577	1.02:1
SliderMinimalPerf.default	1433	1409	1.02:1
StatusMinimalPerf.default	591	579	1.02:1
ToolbarMinimalPerf.default	779	765	1.02:1
TooltipMinimalPerf.default	883	864	1.02:1
ButtonOverridesMissPerf.default	1446	1432	1.01:1
ButtonSlotsPerf.default	470	466	1.01:1
GridMinimalPerf.default	287	284	1.01:1
ItemLayoutMinimalPerf.default	1007	998	1.01:1
ListMinimalPerf.default	443	437	1.01:1
RosterPerf.default	1014	1001	1.01:1
PopupMinimalPerf.default	527	521	1.01:1
TableMinimalPerf.default	346	341	1.01:1
TreeMinimalPerf.default	673	666	1.01:1
BoxMinimalPerf.default	290	291	1:1
CheckboxMinimalPerf.default	2282	2271	1:1
DropdownMinimalPerf.default	2559	2557	1:1
EmbedMinimalPerf.default	3423	3432	1:1
FormMinimalPerf.default	352	352	1:1
InputMinimalPerf.default	1092	1089	1:1
ProviderMergeThemesPerf.default	1463	1457	1:1
TextAreaMinimalPerf.default	419	421	1:1
AlertMinimalPerf.default	232	235	0.99:1
ChatWithPopoverPerf.default	307	311	0.99:1
DropdownManyItemsPerf.default	567	571	0.99:1
ImageMinimalPerf.default	314	318	0.99:1
TableManyItemsPerf.default	1595	1614	0.99:1
MenuMinimalPerf.default	692	705	0.98:1
IconMinimalPerf.default	520	532	0.98:1
ListWith60ListItems.default	533	549	0.97:1
SegmentMinimalPerf.default	290	299	0.97:1
SplitButtonMinimalPerf.default	3576	3684	0.97:1
AnimationMinimalPerf.default	433	453	0.96:1
AccordionMinimalPerf.default	130	139	0.94:1
FlexMinimalPerf.default	242	259	0.93:1