Refactor Editor and module functions (#15)

Moved all module functions to separate utils modules

Replaced standard with standard with typescript

Extracted UI elements to separate component

Reviewed-on: https://git.siklos-chaneru.duckdns.org/Siklos/svg-layout-designer-react/pulls/15

src/Components/MainMenu/MainMenu.tsx

@@ -1,7 +1,7 @@
 import * as React from 'react';
 
 interface IMainMenuProps {
-  newEditor: () => void;
+  newEditor: () => void
   loadEditor: (files: FileList | null) => void
 }