fix: Search filtering now works in PANELS

[bmingles]

I fixed a bug where I was setting description instead of label that was breaking built in search / filter in the "PANELS" treeview.

Testing

from deephaven import empty_table

for i in range(100):
    print(f"Making {i}")
    globals()[f"t{i}"] = empty_table(10).update(['X = i', 'Y = 10 * i'])

• Hover the title of the PANELS tree
• Click the search icon (magnifying glass)
• Type the name of a variable to filter on
• Should scroll to the variable. Clicking the filter button in the search box should actually filter the results

[github-actions]

End-to-end Test Summary

Tests 📝	Passed ✅	Failed ❌	Skipped ⏭️	Pending ⏳	Other ❓	Flaky 🍂	Duration ⏱️
6	6	0	0	0	0	0	05:11:27

A ctrf plugin

Detailed Test Results

Name	Status	ms	Flaky 🍂
should default to the correct settings	passed ✅	1979
should return custom settings: Empty configs	passed ✅	284
should return custom settings: Populated configs	passed ✅	118
should be able to load VSCode	passed ✅	909
should only be visible when a supported file type is active: test.groovy	passed ✅	2884
should only be visible when a supported file type is active: test.py	passed ✅	1179

A ctrf plugin

Failed Test Summary

No failed tests ✨

Flaky Test Summary

No flaky tests detected. ✨