bump: bud@6.12.0 & improvements (#3128)

This PR contains various improvements and cleanups to the configuration and JavaScript code. Key changes include:

- Adding simple comments to `jsconfig.json`.
- Improving config: `bud.wpjson.set` replaces `bud.wpjson.settings`. Note that `bud.wpjson.settings` is not deprecated.
- `bud.wpjson.settings` now disables `dropCap` by default.
- `app.js` and `editor.js` now use `if (import.meta.webpackHot)` instead of optional chaining, since `import.meta.webpackHot` is not a real method and using optional chaining might cause errors.

tailwind.config.js

@@ -0,0 +1,12 @@
+/** @type {import('tailwindcss').Config} config */
+const config = {
+  content: ['./index.php', './app/**/*.php', './resources/**/*.{php,vue,js}'],
+  theme: {
+    extend: {
+      colors: {}, // Extend Tailwind's default colors
+    },
+  },
+  plugins: [],
+};
+
+export default config;