Shortcut Categories

[VanSHOE]

This adds shortcut categories as defined here

The shortcut categories are currently draft categories and may change later on. A known issue is that the opening and closing of categories can be a bit stuttery when opening/ closing categories but it mostly happens when they are just about to be opened/ closed

• [x] I signed CLA
• [x] I made sure the code in the PR follows the coding rules
• [x] I made sure the code compiles on my machine
• [x] I made sure there are no unnecessary changes in the code
• [x] I made sure the title of the PR reflects the core meaning of the issue you are solving
• [x] I made sure the commit message(s) contain a description and answer the question "Why do those changes fix that particular issue?" or "Why are those changes really necessary as improvements?"
• [x] I made sure the commit message title starts with "fix #424242:" if there is a related issue
• [ ] I created the test (mtest, vtest, script test) to verify the changes I made