remove references to Buffer

Author: jjleng

src/templates/core/functions/base64.hbs

@@ -1,8 +1 @@
-const base64 = (str: string): string => {
-	try {
-		return btoa(str);
-	} catch (err) {
-		// @ts-ignore
-		return Buffer.from(str).toString('base64');
-	}
-};
+const base64 = (str: string): string => { return btoa(str); };