[security] replace innerHTML in RevertModal.js

Migrated `js/ui/components/RevertModal.js` to safe DOM APIs (`createElement`, `textContent`, `DOMParser`).
Extracted rendering logic to `js/ui/components/revertModalRenderers.js`.
Updated baseline in `scripts/check-innerhtml.mjs` (0 remaining usages).
Updated tests to mock DOMParser.

Co-authored-by: PR0M3TH3AN <[email protected]>

tests/modal-accessibility.test.mjs

@@ -38,6 +38,7 @@ function installDom(html) {
   globalThis.CustomEvent = window.CustomEvent;
   globalThis.Event = window.Event;
   globalThis.Node = window.Node;
+  globalThis.DOMParser = window.DOMParser;
   Object.defineProperty(globalThis, "navigator", {
     value: window.navigator,
     writable: true,
@@ -64,6 +65,7 @@ function installDom(html) {
     delete globalThis.CustomEvent;
     delete globalThis.Event;
     delete globalThis.Node;
+    delete globalThis.DOMParser;
     delete globalThis.navigator;
     delete globalThis.location;
     delete globalThis.KeyboardEvent;