Deck widget tooltip

[philippjfr]

Fixes #4612

[codecov]

Codecov Report

Merging #4628 (c3036cc) into main (a5c0c1e) will increase coverage by 0.13%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##             main    #4628      +/-   ##
==========================================
+ Coverage   83.02%   83.15%   +0.13%     
==========================================
  Files         260      260              
  Lines       37151    37153       +2     
==========================================
+ Hits        30844    30895      +51     
+ Misses       6307     6258      -49     

Flag	Coverage Δ
ui-tests	39.56% <0.00%> (+0.25%)	⬆️
unitexamples-tests	73.29% <66.66%> (-0.01%)	⬇️

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Impacted Files	Coverage Δ
panel/pane/deckgl.py	95.39% <66.66%> (-0.61%)	⬇️

... and 6 files with indirect coverage changes

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