chore: migrate Button to @revoltchat/ui (#617)

* chore: start moving Button over

* fix: convert ServerIdentityModal

* fix: modal button styling

* fix: popover styles

* fix: clean up references to ui/*.*

* fix: button sizing

Co-authored-by: Ed L <beartechtalks@gmail.com>

tsconfig.json

@@ -19,5 +19,5 @@
         "types": ["vite-plugin-pwa/client"],
         "experimentalDecorators": true
     },
-    "include": ["src", "ui/ui.tsx", "external/lang/Languages.ts"]
+    "include": ["src", "external/lang/Languages.ts"]
 }