fix: Rationalize custom icons to avoid duplication (#1639)

vite.config.ts

@@ -5,11 +5,9 @@ const FULL_COVERAGE_FILES_RELATIVE = [
   'camera-manager/*.ts',
   'camera-manager/browse-media/camera.ts',
   'camera-manager/frigate/camera.ts',
-  'camera-manager/frigate/icon.ts',
   'camera-manager/frigate/requests.ts',
   'camera-manager/frigate/util.ts',
   'camera-manager/generic/*.ts',
-  'camera-manager/motioneye/icon.ts',
   'camera-manager/utils/*.ts',
   'card-controller/**/*.ts',
   'components-lib/**/!(timeline-source.ts)',
@@ -20,6 +18,7 @@ const FULL_COVERAGE_FILES_RELATIVE = [
   'utils/audio.ts',
   'utils/basic.ts',
   'utils/camera.ts',
+  'utils/custom-icons.ts',
   'utils/debug.ts',
   'utils/diagnostics.ts',
   'utils/download.ts',