Forms on ReUI controls: radio-group installed, native checkboxes and radios replaced

Radios (PanelForm) is ReUI's RadioGroup; Check takes rich text; a bare Tick covers
the table-cell ticks and the list-row switch. Settings IPv6 mode, Change Theme and all
Zones modals no longer draw their own native inputs. Matrix and the data-grid's own
selection stay as they are.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>

src/screens/blocking/BlockLists.module.css

@@ -63,7 +63,7 @@ row's name goes in `aria-label` instead, as the table checkboxes of Zones do.
 It takes BOTH classes `Check` gives its own DOM: `check` on the label (the 26 px
 target and the input's alignment) and `toggle` for the switch drawing.
 */
-.switch { composes: check toggle from '../../ui/Check.module.css'; }
+.switch { composes: check from '../../ui/Check.module.css'; }
 
 .name { font-weight: 600; }
 /* The URL wraps after its separators (`ui/UrlText`), not at whatever letter meets the