fix(dashboard): Ensure correct positioning of "Drill to detail by" submenu

[codyml]

SUMMARY

The "Drill to detail by" context menu submenu introduced in #21351 can end up offscreen, if there are enough menu items and you right-click close to the bottom of the viewport. This PR uses the logic that currently handles that issue with the top-level context menu to also handle the issue for the submenu.

BEFORE/AFTER SCREENSHOTS OR ANIMATED GIF

Before:

After:

TESTING INSTRUCTIONS

1. Run Superset with DRILL_TO_DETAIL set to True.
2. Create a dashboard full of time-series bar charts with > 1 dimension.
3. Try opening the drill to detail context menu all over the chart. Submenu placement should be the default Y-position (slightly lower than the parent item) everywhere except near the bottom edge.

ADDITIONAL INFORMATION

• Has associated issue:
• Required feature flags: DRILL_TO_DETAIL
• Changes UI
• Includes DB Migration (follow approval process in SIP-59)
  • Migration is atomic, supports rollback & is backwards-compatible
  • Confirm DB migration upgrade and downgrade tested
  • Runtime estimates and downtime expectations provided
• Introduces new feature or API
• Removes existing feature or API

[codecov]

Codecov Report

Merging #21894 (0b4fae2) into master (9a063ab) will increase coverage by 0.00%.
The diff coverage is 85.71%.

@@           Coverage Diff           @@
##           master   #21894   +/-   ##
=======================================
  Coverage   55.55%   55.56%           
=======================================
  Files        1806     1807    +1     
  Lines       69140    69147    +7     
  Branches     7393     7395    +2     
=======================================
+ Hits        38409    38419   +10     
+ Misses      28822    28818    -4     
- Partials     1909     1910    +1     

Flag	Coverage Δ
javascript	53.33% <85.71%> (+0.01%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...frontend/src/components/Chart/ChartContextMenu.tsx	5.00% <0.00%> (-6.54%)	⬇️
superset-frontend/src/components/Chart/utils.ts	85.71% <85.71%> (ø)
...ponents/Chart/DrillDetail/DrillDetailMenuItems.tsx	95.83% <100.00%> (+0.59%)	⬆️

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[geido]

/testenv up FEATURE_DRILL_TO_DETAIL=true

[github-actions]

@geido Ephemeral environment spinning up at http://35.88.226.218:8080. Credentials are admin/admin. Please allow several minutes for bootstrapping and startup.

[michael-s-molina]

LGTM

[github-actions]

Ephemeral environment shutdown and build artifacts deleted.