Moved scripts from .html files to seperate js .files (#191)

Let's hope everything works as before or better.

Co-authored-by: Adam Bem <adam.bem@zoho.eu>
Reviewed-on: #191
Reviewed-by: Mikolaj Widla <widlam@noreply.example.com>

Frontend/assets/scripts/frame.js

@@ -1,20 +1,5 @@
 const tools = new Map();
 
-/**
- * This functions imports other js file. I hate this solution, but other didn't work.
- * 
- * @function
- * @name importScript
- * @kind function
- * @param {any} url
- * @returns {void}
- */
-function importScript(url) {
-    var script = document.createElement("script");
-    script.src = url;
-    document.head.appendChild(script);
-}
-
 /**
  * Get address of Mock Services
  *