feat(npm): init (catppuccin#547)

* feat(npm): init

* chore(npm): add preview images

* chore(npm): fix lint issues

* fix(npm): remaining lint issues

* fix(npm): theme ts logo, remove redundant code, img fixes

---------

Co-authored-by: Gen <buzhybrid@gmail.com>

Author: uncenter

scripts/userstyles.yml

@@ -479,6 +479,14 @@ userstyles:
     readme:
       app-link: "https://nixos.wiki"
       current-maintainers: [*winston]
+  npm:
+    name: npm
+    category: development
+    icon: npm
+    color: red
+    readme:
+      app-link: "https://www.npmjs.com/"
+      current-maintainers: [*uncenter]
   openmediavault:
     name: OpenMediaVault
     category: productivity