style: run oxfmt repo-wide

First full pass of the pnpm fmt toolchain: markdown table alignment,
TOML array wrapping, CSS/HTML expansion in the enclosure concept page.
No content changes; mermaid blocks untouched.

docs/v0.3-editing.md

@@ -25,6 +25,6 @@ re-confirm on panel).
 - [x] Ahead of schedule: `c` change operator + text objects
       (`ciw`, `di(`, `ca"`, … — inner/around, nesting-aware)
 
-Known limits (deferred): `.` drops a *leading* count (`3x` then `.` deletes one;
+Known limits (deferred): `.` drops a _leading_ count (`3x` then `.` deletes one;
 a count inside an operator like `d2w` is kept); no named registers; `.` after an
 aborted operator (`d<Esc>`) is a no-op.