feat(Python): Allow left/center as table cell alignment format for notebooks

[lisphilar]

Close #15822

We use polars.Config.set_tbl_cell_alignment() to change the table cell alignment format for print(pl.DataFrame()).
This PR enables change format of display(pl.DataFrame()) output on Jupyter Notebook and Google Colab.

To-do

• NotebookFormatter.write_style() selects text-align reading "POLARS_FMT_TABLE_CELL_ALIGNMENT" env variable
• NotebookFormatter.write_style() selects text-align reading "POLARS_FMT_TABLE_CELL_NUMERIC_ALIGNMENT"
• update docs of polars.Config.set_tbl_cell_alignment()
• update docs of polars.Config.set_tbl_cell_numeric_alignment()
• add additional test for display (if possible)

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.37%. Comparing base (1c6b7b7) to head (1eaac8a).
Report is 37 commits behind head on main.

❗ Current head 1eaac8a differs from pull request most recent head 2c9c3af. Consider uploading reports for the commit 2c9c3af to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #15830      +/-   ##
==========================================
- Coverage   80.38%   80.37%   -0.01%     
==========================================
  Files        1263     1263              
  Lines      165368   165368              
==========================================
- Hits       132923   132916       -7     
- Misses      32445    32452       +7     

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[alexander-beedie]

Given the number of lint-related issues I see you had to address, can I check if you have seen the make pre-commit command? It will run all of the standard linti/format rules on your code before you commit (and can fix issues that are found).

[lisphilar]

I will try PR updates this weekend.