Prevent tabulator from overlapping when max_height is set

[ahuang11]

Closes #7401

Before:

After, properly truncates

import panel as pn
import pandas as pd
import numpy as np

pn.extension("tabulator")


df = pd.DataFrame(
    np.random.randn(100, 5),
)
pn.Column(pn.widgets.Tabulator(df, max_height=300), "Hello!").servable()

import panel as pn
import pandas as pd
import numpy as np

pn.extension("tabulator")


df = pd.DataFrame(
    np.random.randn(1, 5),
)
pn.Column(pn.widgets.Tabulator(df, max_height=1000), "Hello!").servable()

Does not use up all the space as max_height

[codecov]

Codecov Report

Attention: Patch coverage is 85.71429% with 2 lines in your changes missing coverage. Please review.

Project coverage is 82.23%. Comparing base (46061e6) to head (d70d43b).
Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
panel/tests/ui/widgets/test_tabulator.py	85.71%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #7403       +/-   ##
===========================================
+ Coverage   71.86%   82.23%   +10.37%     
===========================================
  Files         336      337        +1     
  Lines       50542    50557       +15     
===========================================
+ Hits        36320    41574     +5254     
+ Misses      14222     8983     -5239     

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[philippjfr]

I think maxHeight is also a valid Tabulator configuration option. Maybe let's try that first.

[philippjfr]

Also happy with this PR, but that might be simpler and clearer.

[ahuang11]

Couldn't just dump it in config without a null check:

With null check, everything works as expected

[philippjfr]

Seems like an odd test, why would I have max-height set to 200px in the first place? Seems like it should check that max-height is unset instead.

[ahuang11]

Okay updated--seems counterintuitive to use to_have_css to check for null, but I guess that's the only way!