fix: DH-13095 Ignore right click while dragging table column

[dgodinez-dh]

https://deephaven.atlassian.net/browse/DH-13095

While dragging a column, handleMouseUp would fire on second right click which would remove event listeners. Ignoring the right click while dragging fixes the issue.

[codecov]

Codecov Report

Attention: Patch coverage is 66.66667% with 1 line in your changes missing coverage. Please review.

Project coverage is 46.84%. Comparing base (181d29e) to head (12ebe85).

Files with missing lines	Patch %	Lines
packages/grid/src/Grid.tsx	66.66%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff            @@
##             main    #2415    +/-   ##
========================================
  Coverage   46.84%   46.84%            
========================================
  Files         711      711            
  Lines       39316    39319     +3     
  Branches     9825    10015   +190     
========================================
+ Hits        18416    18418     +2     
+ Misses      20889    20847    -42     
- Partials       11       54    +43     

Flag	Coverage Δ
unit	46.84% <66.66%> (+<0.01%)	⬆️

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