fix: DH-19138: Determine Totals Column Name by Num Aggs Per Column

[dgodinez-dh]

https://deephaven.atlassian.net/browse/DH-19138
For totals table columns, we were applying renaming logic based on number of operations in the config, but it should be on number of operations for each given column.

E.g., for a config {X : [SUM, COUNT], Y: [COUNT]} then your columns will be [X_SUM, X_COUNT, Y] but we were expecting [X_SUM, X_COUNT, Y_COUNT]

[codecov]

Codecov Report

Attention: Patch coverage is 0% with 1 line in your changes missing coverage. Please review.

Project coverage is 46.83%. Comparing base (15c8cfe) to head (d651ddb).

Files with missing lines	Patch %	Lines
...ckages/iris-grid/src/IrisGridTableModelTemplate.ts	0.00%	1 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #2411   +/-   ##
=======================================
  Coverage   46.83%   46.83%           
=======================================
  Files         711      711           
  Lines       39310    39310           
  Branches    10011    10011           
=======================================
  Hits        18411    18411           
  Misses      20845    20845           
  Partials       54       54           

Flag	Coverage Δ
unit	46.83% <0.00%> (ø)

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