bootstrap 5 WIP (#7891)

New standard theme that follows your chosen terminal colors, Bootstrap 5 & Angular 15 upgrade

scripts/generate-icon-metadata.mjs

@@ -0,0 +1,17 @@
+#!/usr/bin/env node
+import jsYaml from 'js-yaml'
+import fs from 'node:fs'
+import path from 'node:path'
+
+import * as url from 'url'
+const __dirname = url.fileURLToPath(new URL('.', import.meta.url))
+
+
+const metadata = jsYaml.load(fs.readFileSync(path.resolve(__dirname, '../node_modules/@fortawesome/fontawesome-free/metadata/icons.yml')))
+
+let result = {}
+for (let key in metadata) {
+    result[key] = metadata[key].styles.map(x => x[0])
+}
+
+fs.writeFileSync(path.resolve(__dirname, '../tabby-core/src/icons.json'), JSON.stringify(result))