Fixes #129686

Fixes #129546

Fixes #129457

- Show the badge on gear icon
- Have an action in gear dropdown to explain and turn on sync

Fixes #129683

Fix focus issues in disassembly view

Allow notebook cell editor taking focus when it's on body. The notebook can lose focus, eg when scrolling a focused cell element out of view, then it goes to body.
Fix #129432

* change seedSearchStringFromSelection to enum never, always, selectionOnly

never: Never seed search string from the editor selection
always: Always seed search string from the editor selection, including word at cursor position
selectionOnly: Only seed search string from the editor selection

* fix seed search string from cursor never stops

* tweak setting and recover legacy value.
Co-authored-by: NSwinder Pal Singh Juneja <swinder.juneja@oneplus.com>
Co-authored-by: Nrebornix <penn.lv@gmail.com>

This reverts commit 13cdef33 in favor of 34419f85

Fixes #129516

Fixes #129517

See #129625

This reverts commit c3b4df8f.

Builtin extensions are stricter and require "web" set for web extensions

Part of #128745

Fixes #129593