[Bug] Cut-off table columns with auto_size_columns=True

Bug

OS: macOS 10.14.6

Python version: Python 3.8.5

PySimpleGUI Port and Version:

4.28.0 Released 3-Aug-2020

<module 'PySimpleGUI' from '/Users/jo/.virtualenvs/letsplaytdd-4tKX_lhX/lib/python3.8/site-packages/PySimpleGUI/__init__.py'>

Your Experience Levels In Months or Years

10 Python programming experience
10 Programming experience overall
no Have used another Python GUI Framework (tkinter, Qt, etc) previously (yes/no is fine)?

You have completed these steps:

• Read instructions on how to file an Issue
• Searched through main docs http://www.PySimpleGUI.org for your problem
• Searched through the readme for your specific port if not PySimpleGUI (Qt, WX, Remi)
• Looked for Demo Programs that are similar to your goal http://www.PySimpleGUI.com
• Note that there are also Demo Programs under each port on GitHub
• Run your program outside of your debugger (from a command line)
• Searched through Issues (open and closed) to see if already reported
• Try again by upgrading your PySimpleGUI.py file to use the current one on GitHub. Your problem may have already been fixed but is not yet on PyPI.

Description of Problem / Question / Details

It seems the column heading is used to calculate the column width. If there are values in rows which are longer than the heading, this cuts off the columns.

Code To Duplicate

import PySimpleGUI as sg
print(sg)
print(sg.version)

## Paste your code here
 layout = [
        [sg.Text('Personal finances')],
        [sg.Table(
            headings=['One', 'Two'],
            values=[[20000, 2000]],
            auto_size_columns=True
        )],
        [sg.OK(), sg.Cancel()]
    ]

    window = sg.Window(
        title="Personal finances",
        layout=layout,
        margins=(5, 5),
        size=(900, 600),
        font=('San Francisco', 15)
    )
    while True:
        event, values = window.read()
        print(event)
        if event == sg.WINDOW_CLOSED or event == 'Cancel':
            break

使用提供的、设置了 auto_size_columns=True 的 sg.Table 示例重现该问题，重点关注表格如何相对于行值调整标题的大小。未指定源文件或测试；当显示的列能够容纳比其标题更长的值，且不破坏现有表格行为时，即视为完成。