fix: column resize inside sheet

[jake-bassett]

Description

Tables within a modal/sheet were using the wrong x offsets to calculate their drag offsets. Fixed by using getBoundingClientRect() to get true offsets within the viewport rather than based on the DOM hierarchy.

Testing

Manually dragged columns of tables in various locations in the product.

Checklist:

[ X] My changes generate no new warnings
[ ] I have added tests that prove my fix is effective or that my feature works
[ X] Any dependent changes have been merged and published in downstream modules

[codecov]

Codecov Report

Merging #351 (cd1308c) into main (745637e) will not change coverage.
The diff coverage is 100.00%.

@@           Coverage Diff           @@
##             main     #351   +/-   ##
=======================================
  Coverage   86.27%   86.27%           
=======================================
  Files         729      729           
  Lines       14844    14844           
  Branches     1760     1760           
=======================================
  Hits        12806    12806           
  Misses       2007     2007           
  Partials       31       31           

Impacted Files	Coverage Δ
projects/components/src/table/table.component.ts	91.50% <100.00%> (ø)

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