ui: Constants refactor (#26908)

* refactor: Constants

* refactor: Constants/Enums cleanup

* refactor: Constant objects instead of multiple single value constants

* refactor: Cleanup constants

tools/ui/src/lib/components/app/actions/ActionIconCopyToClipboard.svelte

@@ -1,7 +1,7 @@
 <script lang="ts">
 	import ActionIcon from './ActionIcon.svelte';
 	import { Copy } from '@lucide/svelte';
-	import { ICON_CLASS_DEFAULT } from '$lib/constants/css-classes';
+	import { ICON_CLASS_DEFAULT } from '$lib/constants';
 	import { copyToClipboard } from '$lib/utils';
 
 	export let ariaLabel: string = 'Copy to clipboard';