Fonts rework (#12114)

- Use system fonts only for text to avoid FOUT
- Move font-awesome to npm/webpack
- Move NotoColorEmoji to web_src
- Remove presumably unneccesary 'PT Sans Narrow'
- Simplify webpack import exclusions

Fixes: https://github.com/go-gitea/gitea/issues/11818
Fixes: https://github.com/go-gitea/gitea/pull/11814

Co-authored-by: zeripath <art27@cantab.net>
Co-authored-by: Lauris BH <lauris@nix.lv>

package.json

@@ -20,6 +20,7 @@
     "fast-glob": "3.2.2",
     "file-loader": "6.0.0",
     "fomantic-ui": "2.8.6",
+    "font-awesome": "4.7.0",
     "jquery": "3.5.1",
     "jquery.are-you-sure": "1.9.0",
     "less-loader": "6.1.0",