Implement new UI component for icons #230

- Introduce `AppIcon.vue`, offering improved performance over the
  previous `fort-awesome` dependency. This implementation reduces bundle
  size by 67.31KB (tested for web using `npm run build -- --mode prod`).
- Migrate Font Awesome 5 icons to Font Awesome 6.

This commit facilitates migration to Vue 3.0 (#230) and ensures no Vue
component remains tightly bound to a specific Vue version, enhancing
code portability.

Font Awesome license is not included because Font Awesome revokes its
right:

> "Attribution is no longer required as of Font Awesome 3.0"
>
> Sources:
>
> - https://fontawesome.com/v4/license/ (archived: https://web.archive.org/web/20231003213441/https://fontawesome.com/v4/license/, https://archive.ph/Yy9j5)
> - https://github.com/FortAwesome/Font-Awesome/wiki (archived: https://web.archive.org/web/20231003214646/https://github.com/FortAwesome/Font-Awesome/wiki, https://archive.ph/C6sXv)

This commit removes following third-party production dependencies:

- `@fortawesome/vue-fontawesome`
- `@fortawesome/free-solid-svg-icons`
- `@fortawesome/free-regular-svg-icons`
- `@fortawesome/free-brands-svg-icons`
- `@fortawesome/fontawesome-svg-core`

src/presentation/components/TheSearchBar.vue

@@ -7,7 +7,7 @@
       v-model="searchQuery"
     >
     <div class="icon-wrapper">
-      <font-awesome-icon :icon="['fas', 'search']" />
+      <AppIcon icon="magnifying-glass" />
     </div>
   </div>
 </template>
@@ -19,11 +19,13 @@ import {
 } from 'vue';
 import { InjectionKeys } from '@/presentation/injectionSymbols';
 import { NonCollapsing } from '@/presentation/components/Scripts/View/Cards/NonCollapsingDirective';
+import AppIcon from '@/presentation/components/Shared/Icon/AppIcon.vue';
 import { IReadOnlyUserFilter } from '@/application/Context/State/Filter/IUserFilter';
 import { IFilterResult } from '@/application/Context/State/Filter/IFilterResult';
 import { IEventSubscription } from '@/infrastructure/Events/IEventSource';
 
 export default defineComponent({
+  components: { AppIcon },
   directives: {
     NonCollapsing,
   },