chore(Minor UI improvements): Expand/Collapse all and file card titles

[gatzjames]

Highlights:

• Adds expand/collapse all button for sidebar
• Improved file title by expanding to 4 lines instead of 2
• Scroll into view on request focus

[sentry]

Suspect Issues

This pull request was deployed and Sentry observed the following issues:

• ‼️ Error: Expected fetch controller: :r1u: Array.forEach(<anonymous>) View Issue
• ‼️ Error: Expected fetch controller: :r667: Array.forEach(<anonymous>) View Issue
• ‼️ Error: Expected fetch controller: :r2b: Array.forEach(<anonymous>) View Issue
• ‼️ Error: Unexpected undefined <anonymous>(src/ui/routes/debug) View Issue

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