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/bootstrapping/Modules/IconBootstrapper.ts

@@ -1,38 +0,0 @@
-import { library } from '@fortawesome/fontawesome-svg-core';
-import { faGithub } from '@fortawesome/free-brands-svg-icons';
-/** BRAND ICONS (PREFIX: fab) */
-import { FontAwesomeIcon } from '@fortawesome/vue-fontawesome';
-/** REGULAR ICONS (PREFIX: far) */
-import { faFolderOpen, faFolder, faSmile } from '@fortawesome/free-regular-svg-icons';
-/** SOLID ICONS (PREFIX: fas (default)) */
-import {
-  faTimes, faFileDownload, faCopy, faSearch, faInfoCircle, faUserSecret, faDesktop, faTag, faGlobe,
-  faSave, faBatteryFull, faBatteryHalf, faPlay, faArrowsAltH,
-} from '@fortawesome/free-solid-svg-icons';
-import { IVueBootstrapper, VueConstructor } from '../IVueBootstrapper';
-
-export class IconBootstrapper implements IVueBootstrapper {
-  public bootstrap(vue: VueConstructor): void {
-    library.add(
-      faGithub,
-      faUserSecret,
-      faSmile,
-      faDesktop,
-      faGlobe,
-      faTag,
-      faFolderOpen,
-      faFolder,
-      faTimes,
-      faFileDownload,
-      faSave,
-      faCopy,
-      faPlay,
-      faSearch,
-      faBatteryFull,
-      faBatteryHalf,
-      faInfoCircle,
-      faArrowsAltH,
-    );
-    vue.component('font-awesome-icon', FontAwesomeIcon);
-  }
-}