feat: Expose disableFooterPaddings on container

[gethinwebster]

Description

Expose disableFooterPaddings property on container (core only), for added consistency with other container slots.

Related links, issue #, if available: n/a

How has this been tested?

Review checklist

The following items are to be evaluated by the author(s) and the reviewer(s).

Correctness

• Changes include appropriate documentation updates.
• Changes are backward-compatible if not indicated, see CONTRIBUTING.md.
• Changes do not include unsupported browser features, see CONTRIBUTING.md.
• Changes were manually tested for accessibility, see accessibility guidelines.

Security

• If the code handles URLs: all URLs are validated through the checkSafeUrl function.

Testing

• Changes are covered with new/existing unit tests?
• Changes are covered with new/existing integration tests?

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 96.54%. Comparing base (2196366) to head (7bf796c).

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #3541    +/-   ##
========================================
  Coverage   96.54%   96.54%            
========================================
  Files         804      804            
  Lines       23434    23434            
  Branches     7748     8172   +424     
========================================
  Hits        22625    22625            
+ Misses        802      755    -47     
- Partials        7       54    +47     

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