hud customizer: Add resizing

[wertiop121]

Added resizing to the hud editor.

Most hud elements aren't resized properly, but the chat works.
There's a new size property that needs to be added to the hud_default.kv3

Checks

• I have thoroughly tested all of the code I have modified/added/removed to ensure something else did not break
• I have followed semantic commit messages e.g. feat: Add foo, chore: Update bar, etc...
• My branch has a clear history of changes that can be easy to follow when being reviewed commit-by-commit
• My branch is functionally complete; the only changes to be done will be those potentially requested in code review
• All changes requested in review have been fixuped into my original commits.
• Fully tokenized all my strings (no hardcoded English strings!!) and supplied bulk JSON strings below

[wertiop121]

It's showing the previous commits in the branch, so i think i'll have to wait until i can delete my fork and create a new one.