chore: remove unused modules and dependencies

Delete files with no importers (src/actions/{account,database,window}.ts,
drag-window-region, navigation-menu, ui/navigation-menu, ui/toggle,
ui/toggle-group) and the packages only they or nothing used
(@icons-pack/react-simple-icons, @radix-ui/react-icons,
@sentry/integrations, @radix-ui/react-{navigation-menu,toggle,toggle-group}).
Drop the duplicated Playwright block in .gitignore.

package.json

@@ -99,7 +99,6 @@
     "vitest": "^4.0.8"
   },
   "dependencies": {
-    "@icons-pack/react-simple-icons": "^13.8.0",
     "@nestjs/common": "^11.1.18",
     "@nestjs/core": "^11.1.18",
     "@nestjs/microservices": "^11.1.18",
@@ -116,19 +115,14 @@
     "@radix-ui/react-checkbox": "^1.3.3",
     "@radix-ui/react-dialog": "^1.1.15",
     "@radix-ui/react-dropdown-menu": "^2.1.16",
-    "@radix-ui/react-icons": "^1.3.2",
     "@radix-ui/react-label": "^2.1.8",
-    "@radix-ui/react-navigation-menu": "^1.2.14",
     "@radix-ui/react-select": "^2.2.6",
     "@radix-ui/react-slot": "^1.2.4",
     "@radix-ui/react-switch": "^1.2.6",
     "@radix-ui/react-tabs": "^1.1.13",
     "@radix-ui/react-toast": "^1.2.15",
-    "@radix-ui/react-toggle": "^1.1.9",
-    "@radix-ui/react-toggle-group": "^1.1.11",
     "@radix-ui/react-tooltip": "^1.2.8",
     "@sentry/electron": "^7.7.0",
-    "@sentry/integrations": "^7.114.0",
     "@tanstack/react-query": "^5.90.7",
     "@tanstack/react-router": "^1.139.3",
     "@tanstack/react-router-devtools": "^1.135.0",