feat(subform): tablecolumns config design update

[Jondyr]

Description

• Selecting a component fills in query and headerContent
• Added a new mock file that contains a layoutSet for testing subform layoutsets subformLayoutMock.ts

Related Issue(s)

• Update subForm tableColumns config to comply with UX design #13683

Verification

• Your code builds clean without any errors or warnings
• Manual testing done (required)
• Relevant automated test added (if you find this hard, leave it and we'll help out)

Documentation

• User documentation is updated with a separate linked PR in altinn-studio-docs. (if applicable)

[codecov]

Codecov Report

Attention: Patch coverage is 98.11321% with 1 line in your changes missing coverage. Please review.

Project coverage is 95.14%. Comparing base (1deff1c) to head (e337aa4).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
...umnElement/EditColumnElement/EditColumnElement.tsx	96.87%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #13902   +/-   ##
=======================================
  Coverage   95.13%   95.14%           
=======================================
  Files        1677     1679    +2     
  Lines       22238    22273   +35     
  Branches     2612     2613    +1     
=======================================
+ Hits        21157    21192   +35     
+ Misses        835      834    -1     
- Partials      246      247    +1     

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[JamalAlabdullah]

Good jobb and it works perfect ❤️ I have just small comments 😊

[JamalAlabdullah]

I wonder also if we can move the entir card to be in the centar :

[Jondyr]

I wonder also if we can move the entir card to be in the centar :

Good catch, i will adjust this 👍

[JamalAlabdullah]

Nice ❤️