feat(theme,interfaces): Introduce a global theming system and unify menu/tab interfaces; migrate components to use themeDefaultStyles and update APIs accordingly

ts_web/elements/dees-table/styles.ts

@@ -1,9 +1,12 @@
 import { cssManager, css, type CSSResult } from '@design.estate/dees-element';
 import { cssGeistFontFamily } from '../00fonts.js';
+import { themeDefaultStyles } from '../00theme.js';
 
 export const tableStyles: CSSResult[] = [
+  themeDefaultStyles,
   cssManager.defaultStyles,
   css`
+      /* TODO: Migrate hardcoded values to --dees-* CSS variables */
       :host {
         display: block;
         width: 100%;