Fixes for M-02 to M-14, G-01 to G-14, K-02 to K-04, X-04 to X-14, not yet reviewed

Committed before review so Windows and WSL builds can start.
Each fix was tested and mutation-checked here; the codex review
of each item is still to come, so tasks/BUGS.md stays unticked.

M-02 is mid-review: round 1 findings are fixed (apps/ely-mark/src/tally.rs).
K-01 stays deferred. The ElyMark window test mark-outside.sh failed
once at its crash-recovery step in the last run; not yet looked into.

apps/ely-mark/src/finding.rs

@@ -115,8 +115,12 @@ impl Desk {
 
     fn close_find(&mut self, window: &mut Window, cx: &mut Context<Self>) {
         self.finder = None;
-        if let Some(view) = self.active_view() {
+        // Every tab's page holds its own highlights.
+        let views: Vec<_> = self.core.tabs.iter().map(|tab| tab.view.clone()).collect();
+        for view in views {
             view.update(cx, |view, cx| view.unfind(cx));
+        }
+        if let Some(view) = self.active_view() {
             let focus = view.read(cx).focus.clone();
             window.focus(&focus, cx);
         }