Scrolling and other bugs when table is narrower width than column header

[mofojed]

Description
Related to #1276

When creating a column with a very long name, and the column width is larger than the table viewport, weird behaviour occurs.

Steps to reproduce

1. Run the following code:

from deephaven import new_table
from deephaven.column import string_col, int_col

result = new_table([
    int_col("I1", [1, 2, 3]),
    int_col("I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I2I23", [4, 5, 6]),
])
2. Scroll the table horizontally
3. Drag column headers to re-order them

Expected results
2. Scrolling should work
3. Should be able to re-arrange columns

Actual results
2. Scrolling gets wonky
3. Re-arranging columns is wonky

Additional details and attachments

Versions

Engine Version: 0.24.0
Web UI Version: 0.34.0
Java Version: 11.0.17
Barrage Version: 0.5.0

[ethanalvizo]

make the viewport really small and then try re-arranging