feat: Support configuration for rendering summaries of current and previous tasks

[mlqn]

Description

• Added support for rendering summaries of current and previous tasks.
• Set the fieldset size to small so that all design system components (e.g., NativeSelect, ComboBox) have the same size.

In this first version, all taskIds will be displayed, and it will be the user's responsability to select a previous or current taskId, similar to how we handled uniqueFromSignaturesInDataTypes in the signin tasks.

Related Issue(s)

• Support configuration for rendering summaries of current and previous tasks #13520

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

All modified and coverable lines are covered by tests ✅

Project coverage is 94.55%. Comparing base (a591d37) to head (5161661).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #13752   +/-   ##
=======================================
  Coverage   94.54%   94.55%           
=======================================
  Files        1621     1621           
  Lines       21677    21694   +17     
  Branches     2549     2555    +6     
=======================================
+ Hits        20495    20512   +17     
  Misses        939      939           
  Partials      243      243           

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[JamalAlabdullah]

Tested and works fine👍