[iOS] - Fix Leo bugs found in QA iteration 1

[Brandon-T]

Summary

• Fix popover not showing correctly after tapping on `Advanced Settings
• Fix popover not showing correctly when tapping the info icon while the keyboard is on screen
• Update strings to lower-case by default (upper-cased in code)
• Allow QA to be redirected to the release page to manage subscriptions on a release sandboxed build

Resolves brave/brave-browser#36650
Resolves brave/brave-browser#36653
Resolves brave/brave-browser#36656
Resolves brave/brave-browser#36659

Submitter Checklist:

• I confirm that no security/privacy review is needed and no other type of reviews are needed, or that I have requested them
• There is a ticket for my issue
• Used Github auto-closing keywords in the PR description above
• Wrote a good PR/commit description
• Squashed any review feedback or "fixup" commits before merge, so that history is a record of what happened in the repo, not your PR
• Added appropriate labels (QA/Yes or QA/No; release-notes/include or release-notes/exclude; OS/...) to the associated issue
• Checked the PR locally:
  • npm run test -- brave_browser_tests, npm run test -- brave_unit_tests wiki
  • npm run presubmit wiki, npm run gn_check, npm run tslint
• Ran git rebase master (if needed)

Reviewer Checklist:

• A security review is not needed, or a link to one is included in the PR description
• New files have MPL-2.0 license header
• Adequate test coverage exists to prevent regressions
• Major classes, functions and non-trivial code blocks are well-commented
• Changes in component dependencies are properly reflected in gn
• Code follows the style guide
• Test plan is specified in PR before merging

After-merge Checklist:

• The associated issue milestone is set to the smallest version that the
  changes has landed on
• All relevant documentation has been updated, for instance:
  • https://github.com/brave/brave-browser/wiki/Deviations-from-Chromium-(features-we-disable-or-remove)
  • https://github.com/brave/brave-browser/wiki/Proxy-redirected-URLs
  • https://github.com/brave/brave-browser/wiki/Fingerprinting-Protections
  • https://github.com/brave/brave-browser/wiki/Brave%E2%80%99s-Use-of-Referral-Codes
  • https://github.com/brave/brave-browser/wiki/Web-Compatibility-Exceptions-in-Brave
  • https://github.com/brave/brave-browser/wiki/QA-Guide
  • https://github.com/brave/brave-browser/wiki/P3A

Test Plan:

[hffvld]

Verified #36650 on iPhone 14using version(s):

Device/OS: iPhone 14 / iOS 17.4
Brave build: 1.65 (77)
BraveCore: 1.65.77 (123.0.6312.29)

---

Tooltip pop-up

STEPS:

1. Launch Brave
2. Open Leo
3. Bring up the keyboard
4. Tap on the Info icon > Verify

ACTUAL RESULTS:

• Verified that the Info pop-up message is shown in a proper location when the keyboard was previously opened

---

2024-03-12_10-04-41.mp4

Leo's main menu self opening

STEPS:

1. Launch Brave
2. Open Leo
3. Tap Main menu > Change the language model
4. Submit query > Verify

ACTUAL RESULTS:

• Verified that Leo's Main menu is not opened by itself

---

2024-03-12_10-09-31.mp4

Leo's main menu responsiveness

STEPS:

1. Launch Brave
2. Open Leo
3. Tap Main menu > Advanced Settings
4. Close Advanced Settings
5. Tap ⚙️ icon to open Main menu > Verify

ACTUAL RESULTS:

• Verified that the Main menu can be reopened again at any time

---

2024-03-12_10-25-28.mp4

[Uni-verse]

Verified brave/brave-browser#36653 using iPhone 12 running iOS 17.3.1 using version 1.65 (77) Nightly channel

• Ensured that premium is enabled using active credentials
• Ensured that Manage Subscriptions sends user to account.bravesoftware.com for Nightly channel

RPReplay_Final1710263923.MP4

[hffvld]

Verified #36659 on iPhone 14 using version(s):

Device/OS: iPhone 14 / iOS 17.4
Brave build: 1.65 (77)
BraveCore: 1.65.77 (123.0.6312.29)

---

STEPS:

1. Followed the steps from [Leo] Regenerate function is working only towards the last query brave-browser#36659 (comment)
2. Verified

ACTUAL RESULTS:

• Verified that the Regenerate function works towards each query in the chat.

---

2024-03-12_10-39-58.mp4

[Uni-verse]

Verified brave/brave-browser#36656 using Nightly channel version 1.65 (77) on iPhone 12 running iOS 17.3.1

• Ensured that menu are not cut off on iPad in both orientations
• Ensured menus issues in Issues with settings menu for Leo brave-browser#36650 are resolved.

Example	Example