feat: mobile-like window size and always-visible stats

- Changed window size to mobile phone format (400x800)
- Removed width condition for ActiveProxyFooter - now always visible
- Added run-umbrix.sh launch script with icon copying
- Stats cards now display on all screen sizes

update-server/latest.json

@@ -0,0 +1,11 @@
+{
+    "version": "1.7.3",
+    "build_number": "173",
+    "is_prerelease": false,
+    "download_url": "http://10.0.2.2:8000/downloads/android/umbrix-1.7.1.apk",
+    "release_notes": "Исправлена установка APK при обновлении",
+    "published_at": "2026-01-17T05:49:07.696Z",
+    "min_required_version": "2.0.0",
+    "file_size_bytes": 0,
+    "file_checksum_sha256": ""
+}