fix(writer): keep list numbering continuous, plus assorted drive/writer fixes

[safwansamsudeen]

Summary

Primary fix: list numbering in the Writer editor no longer resets when you edit around a list. Deleting a block between two lists — or pressing Enter to lift an item out — used to leave two sibling orderedList nodes, so the second one restarted at 1. A new JoinAdjacentLists ProseMirror extension merges adjacent same-type list nodes back into one after each transaction.

Bundled alongside are several small drive/writer fixes that were in the working tree.

Changes

• fix(writer): JoinAdjacentLists extension — maps boundaries through tr.mapping (avoids the stale-position Cannot join paragraph onto orderedList throw), requires both siblings to be the same list type, and collects top-level boundaries since descendants() skips the doc node. Wired into CoreEditor's editorExtensions.
• fix(drive): let an open dialog's own Escape handler run instead of clearing the selection in GridView/ListView (preventDefault was blocking Reka's dismiss).
• fix(writer): focus the comment editor without scrolling, on mount and when it enters edit mode.
• refactor(drive): use the Button component for UploadTracker controls and MoveDialog breadcrumbs; tidy ConfirmDialog markup, solid trash button.
• refactor(writer): drop watermark logic from PDF and print export.
• style(writer): sentence-case settings labels.
• style(drive): gap in the UserListSettings avatar row.

Testing

The list-join logic was verified against a ProseMirror repro covering top-level splits, paragraph-separated lists, mixed list types, the Enter-out case, nested + top-level adjacency (the stale-position crash), and triple-adjacent lists — all merge correctly with no throws.

🤖 Generated with Claude Code

[safwansamsudeen]

Also redoes list view, adds infinite scrolling, removes rename dialog, and a couple more long pending issues.