refactor: move normalize and fontawesome to vendor.css (@fehmer) (#6233)

Move normalize.css and fontawesome to vendor.scss

Author: fehmer

frontend/src/styles/index.scss

@@ -1,5 +1,4 @@
-@import "normalize.css", "fontawesome-5", "buttons", "fonts", "404", "ads",
-  "about", "account", "animations", "banners", "caret", "commandline", "core",
-  "footer", "inputs", "keymap", "leaderboards", "login", "monkey", "nav",
-  "notifications", "popups", "profile", "scroll", "settings", "account-settings",
-  "test", "media-queries";
+@import "buttons", "fonts", "404", "ads", "about", "account", "animations",
+  "banners", "caret", "commandline", "core", "footer", "inputs", "keymap",
+  "leaderboards", "login", "monkey", "nav", "notifications", "popups", "profile",
+  "scroll", "settings", "account-settings", "test", "media-queries";

frontend/src/styles/vendor.scss

@@ -1,2 +1,4 @@
+@import "normalize.css";
+@import "fontawesome-5";
 @import "slim-select/styles";
 @import "balloon-css/src/balloon";