feat(alternativeto): init (#1265)

* feat(alternativeto): init

* style: lint

* reorder variables

* unthemed elements

* untehmet eelments

* un themed elements

* detect classes without relying on the random part

* style          lint

* remove useless stuff

* unthemed svg

* add screenshot

* replace when with if

* navbar items hover

* change `--gray150` from `surface1` to `surface0`

* change primary button text color to crust

* update footer text color to @text

Co-authored-by: uncenter <[email protected]>

* revert footer text color change

* header changes

* footer changes

* theme AppStores & Other Links

* fix search results

* remove unnecessary line

* theme social network icons

* theme appstores hovered background

* register popup header

* auth page

* danger button

* warning button

* add success button

Co-authored-by: uncenter <[email protected]>

* disabled buttons

* disabled buttons 2

* auth page login icons

* update `preview.webp`

* nesting

Co-authored-by: uncenter <[email protected]>

* remove `@dark-accent-color`

---------

Co-authored-by: uncenter <[email protected]>

scripts/userstyles.yml

@@ -154,6 +154,13 @@ userstyles:
     readme:
       app-link: https://adventofcode.com
     current-maintainers: [*rubyowo]
+  alternativeto:
+    name: AlternativeTo
+    categories: [productivity, discussion_forum]
+    color: sapphire
+    readme:
+      app-link: "https://alternativeto.net"
+    current-maintainers: [*thismoon]
   amplenote:
     name: Amplenote
     categories: [productivity]