fix(ui): Drop the inner focus outline on text and search fields

The global :focus-visible outline outranked the module's `outline: none`
by load order, drawing a second ring inside the framed field's own focus
ring (visible on the Settings search box).

Claude-Session: https://claude.ai/code/session_01B65qLEKnkeYTGdbwhLpjCu

src/ui/Input.module.css

@@ -74,6 +74,11 @@
   -webkit-user-select: text;
   user-select: text;
 }
+.input:focus-visible,
+.searchInput:focus-visible {
+  /* The frame's focus ring stands in for the global :focus-visible outline. */
+  outline: none;
+}
 .invalid .searchInput {
   color: var(--danger);
 }