Treat small selections as clicks in editor

Change click handler to bail for any non-trivial selection (>3 chars) instead of only multi-line selections. Small selections (<4 chars) from slight mouse movement are now treated as clicks and corrected. Comments updated to clarify behavior and note that list normalization also collapses accidental small selections in the marker area.

Author: ChristianChiarulli

app/src/features/editor/note-editor.tsx

@@ -481,15 +481,14 @@ export const NoteEditor = forwardRef<NoteEditorHandle, NoteEditorProps>(
               return false;
             },
             click(event, view) {
-              // Bail for multi-line selections (real drags). Same-line
-              // selections from slight mouse movement are corrected below.
+              // Bail for any non-trivial selection (real drags).
+              // Small selections from slight mouse movement (< 4 chars)
+              // are treated as clicks and corrected. The list normalization
+              // filter also collapses accidental small selections in the
+              // marker area.
               const sel = view.state.selection.main;
-              if (!sel.empty) {
-                const fromLine = view.state.doc.lineAt(sel.from);
-                const toLine = view.state.doc.lineAt(sel.to);
-                if (fromLine.number !== toLine.number) {
-                  return false;
-                }
+              if (!sel.empty && sel.to - sel.from > 3) {
+                return false;
               }
 
               const lineStart = getLeadingPaddingClickLineStart(view, event);