fix: strip Electron UA tokens, refresh bookmark star on in-app navigation

- main.js: app.userAgentFallback cleaned of Electron/X.X and ESH-Media/X.X
  tokens at startup; applied to default/proxy/direct sessions. Google's
  accounts page blocked Electron UA with "Поддержка JavaScript отключена".
- Header.tsx: subscribe currentUrl to updateWebButtons (already fired on
  each in-app navigation). Bookmark star now updates as user clicks
  between movies inside the same opened site, not only on app switch.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

package.json

@@ -1,6 +1,6 @@
 {
   "name": "ESH-Media",
-  "version": "1.0.1",
+  "version": "1.0.2",
   "private": true,
   "main": "main.js",
   "scripts": {