Composer improvements and fewer unexpected logouts

⭐️ New and improved

• The right sidebar opens automatically when you send a clip to a Composer.
• The Composer archive supports pull-to-refresh when importing files.
• Interface optimised for iPhones with smaller screens in Composer and Cut views.
• A setting to turn off the down arrow key’s default behaviour of returning the playhead to the last paused point.
• Playback pauses automatically when you edit or move a clip in a Composer.
• Better server error messages when session startup fails.

🐛 Fixes and tweaks

• No more unexpected logouts. Background checks stop while you view sessions.
• You can no longer copy a clip from a Composer to itself.
• The sidebar icon updates correctly on macOS when sending clips to a Composer.
• Send to Composer and Merge Cuts are disabled when no clips are selected.
• Clearer selection in light mode in the Send to Composer menu.
• A Cancel button in the macOS Send to Composer menus.
• Video control overlay visibility is remembered when you exit Manual Cut Overlay.
• Cleaner multi-angle mode, with the primary angle name removed from the top.
• When editing clip position in a Composer, playback is paused and the blue highlight returns to the active clip on exit.
• Fixed repeated duplicate clip warnings when sending a clip to a Composer.