Change the following setting names below to sentence case on brave://settings

[0xedward]

• Side menu -> "Help Tips" to "Help tips"
• Appearance -> Themes -> "Open Web Store" to "Open web store"
• Appearance -> "Always show bookmarks on New Tab page" to "Always show bookmarks on New Tab page"
• Appearance -> "Pressing Tab on a webpage" to "Press tab on a webpage"
• Shields -> "Look & Feel" to "Look & feel"
• Extensions -> "Private Window with Tor" to "Private window with Tor"
• Extensions -> Get more extensions -> "Open Web Store" to "Open web store"
• Privacy and security -> "WebRTC IP Handling Policy" to "WebRTC IP handling policy"
• Privacy and security -> "Use Google Services for Push Messaging" to "Use Google services for push messaging"

Resolves brave/brave-browser#8822

Submitter Checklist:

• Submitted a ticket for my issue if one did not already exist.
• Used Github auto-closing keywords in the commit message.
• Added/updated tests for this change (for new code or code which already has tests).
• Verified that these changes build without errors on
  • Android
  • iOS
  • Linux
  • macOS
  • Windows
• Verified that these changes pass automated tests (unit, browser, security tests) on
  • iOS
  • Linux
  • macOS
  • Windows
• Verified that all lint errors/warnings are resolved (npm run lint)
• Ran git rebase master (if needed).
• Ran git rebase -i to squash commits (if needed).
• Tagged reviewers and labelled the pull request as needed.
• Request a security/privacy review as needed.
• Add appropriate QA labels (QA/Yes or QA/No) to include the closed issue in milestone
• Public documentation has been updated as necessary. 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/Custom-Headers
  • https://github.com/brave/brave-browser/wiki/Web-compatibility-issues-with-tracking-protection
  • https://github.com/brave/brave-browser/wiki/QA-Guide

Test Plan:

Reviewer Checklist:

• New files have MPL-2.0 license header.
• Request a security/privacy review as needed.
• Adequate test coverage exists to prevent regressions
• Verify test plan is specified in PR before merging to source

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.

[rebron]

Looks good.

[bsclifton]

Thanks again for the contribution, @0xedward - and apologies it took a long time to review this ☹️ We have a growing stack of pull requests!