Node editor context menu & Node categories

[Ezbaze]

• Fix the clickability area of categories in the node editor context menu Category text label isn't clickable in the Node Graph editor context menu #2718
• Node editor context menu nodes category swaps:
  1. Circular Repeat: Vector → Instancing
  2. Copy to Points: Vector → Instancing
  3. Repeat: Vector → Instancing
  4. Switch: Text → Math: Logic
• Organise code for certain nodes across files to reflect their new categories

Closes #2718
Closes #https://discordapp.com/channels/731730685944922173/881073965047636018/1383884104566706217
Closes#https://discordapp.com/channels/731730685944922173/881073965047636018/1384323535316713542

[Keavon]

I have force pushed this branch to move it to a new base. Ensure you have the branch checked out. Then run git stash on any local changes (and ask me before following these steps if you have any un-pushed commits on your local machine). Then fetch this branch and git reset --hard origin/node-editor-context-menu. And finally git stash pop your stashed local changes, if you stashed them.