feat: Table plugin support for GridWidgetPlugin

[mattrunyon]

Also fixes selection and panelState reactivity (for GridWidget, not IrisGridPanel). Could fix for IrisGridPanel here as well if desired.

Passes the panel name as tableName since tables do not actually have names. Mimics the panel prop passed to plugins to give irisGrid and getTableName which might have been previously used. Should keep most things backwards compatible unless there were other items from the panel being used.

One concern I have is the filters from plugins are completely invisible to users once they are applied. They don't go to quick filters or anywhere else, just applied with no visual. This probably makes sense as a separate ticket though.

Testing

You can checkout my plugins branch https://github.com/mattrunyon/deephaven-plugins/tree/table-plugin-example and use the local JS plugin server.

Then use the following code to test (stocks will not update the counter state since it uses the IrisGridPanel version which doesn't update state prop to the component)

import deephaven.ui as ui
import deephaven.plot.express as dx

stocks = dx.data.stocks().with_attributes({'PluginName' : 'table-example'})
t = ui.panel(stocks)

[mofojed]

Good overall, I haven't actually tested it with a plugin. If you update the Test Plan on the ticket attach a built plugin to make it easy for testers.

[mofojed]

I'm surprised this didn't already exist.

[mattrunyon]

I was too. It looks like we always just used the panel or glContainer to find the item since we only accessed the GL content item from the panel component.

[mattrunyon]

It looks like we have PanelManager.getContainerByPanelId which is close. I'm going to leave this util I think because the closest we can do is the logic from that which gets the stack for the item with config containing the id, then gets the item from the stack

This also lets you get a row or column which wouldn't work with the other logic (since they're not in a stack), but I can't think of a useful reason for that.

[mofojed]

Mmm at some point wish we could clean up our GridModel types. Should all be defined as types/interfaces instead of classes.

[codecov]

Codecov Report

Attention: Patch coverage is 71.42857% with 16 lines in your changes missing coverage. Please review.

Project coverage is 44.65%. Comparing base (5b572c3) to head (cb52739).
Report is 5 commits behind head on main.

Files with missing lines	Patch %	Lines
.../dashboard-core-plugins/src/TablePluginWrapper.tsx	12.50%	14 Missing ⚠️
...ages/dashboard-core-plugins/src/useTablePlugin.tsx	94.44%	1 Missing ⚠️
packages/dashboard/src/layout/LayoutUtils.ts	90.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2478      +/-   ##
==========================================
+ Coverage   44.54%   44.65%   +0.11%     
==========================================
  Files         759      761       +2     
  Lines       42526    42597      +71     
  Branches    10877    10902      +25     
==========================================
+ Hits        18942    19021      +79     
+ Misses      23528    23520       -8     
  Partials       56       56              

Flag	Coverage Δ
unit	44.65% <71.42%> (+0.11%)	⬆️

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