workflow: added TailwindCSS; workflow: removed watch:style script from dev script

src/app.js

@@ -5,6 +5,7 @@ window.vol = {
 	preview_max_volume: 100
 }
 
+import '@/styles/scss/style.scss'
 import App from '@/App.vue'
 import i18n from '@/plugins/i18n'
 import router from '@/router'

src/styles/scss/style.scss

@@ -1,3 +1,7 @@
+@import '~tailwindcss/base';
+@import '~tailwindcss/components';
+@import '~tailwindcss/utilities';
+
 // SASS only
 @import './base/variables';