Refactor FXIOS-14256 [Toolbar] Update Blur Views: Clean up performance (part 2)

[thatswinnie]

:scroll: Tickets

Jira ticket Github issue

:bulb: Description

Various improvments to address performance issues related to blur views (part 2)

:pencil: Checklist

• [x] I filled in the ticket numbers and a description of my work
• [x] I updated the PR name to follow our PR naming guidelines
• [ ] I ensured unit tests pass and wrote tests for new code
• [ ] If working on UI, I checked and implemented accessibility (Dynamic Text and VoiceOver)
• [ ] If adding telemetry, I read the data stewardship requirements and will request a data review
• [ ] If adding or modifying strings, I read the guidelines and will request a string review from l10n
• [ ] If needed, I updated documentation and added comments to complex code

[mobiletest-ci-bot]

	Messages
:book:	Project coverage: 38.37%

🧹 Tidy commit

Just 1 file(s) touched. Thanks for keeping it clean and review-friendly!

🦊 BrowserViewController Check

We’re tracking the size of BrowserViewController.swift to keep it healthy.

• ✨ Change in file size: +13 lines

❌ Per-file test coverage gate

The following changed file(s) are below 35.0% coverage:

File	Coverage	Required
firefox-ios/Client/Frontend/Browser/BrowserViewController/Views/BrowserViewController.swift	29.6%	35.0%

Client.app: Coverage: 37.09

File	Coverage
BrowserViewController.swift	29.65%	⚠️

Generated by :no_entry_sign: Danger Swift against 0db398b9bdbd2102039346ece68faecf820c0983

[github-actions[bot]]

🚀 PR merged to main, targeting version: 147.0