Split categories and bookmarks forms into separate files. Added visibility functionality to categories and bookmarks

client/src/components/UI/Buttons/Button/Button.tsx

@@ -1,7 +1,8 @@
+import { ReactNode } from 'react';
 import classes from './Button.module.css';
 
 interface Props {
-  children: string;
+  children: ReactNode;
   click?: any;
 }