Rename ProgressBarBase to ProgressBar

[tshu-w]

What does this PR do?

Fixes #11908

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[tshu-w]

Should I rename progress/base.py to progress_bar.py?

[carmocca]

Yes please

[codecov]

Codecov Report

Merging #17058 (39d8763) into master (c93952c) will decrease coverage by 3%.
The diff coverage is 100%.

Additional details and impacted files

@@            Coverage Diff            @@
##           master   #17058     +/-   ##
=========================================
- Coverage      82%      79%     -3%     
=========================================
  Files         436      418     -18     
  Lines       31739    31546    -193     
=========================================
- Hits        25985    24845   -1140     
- Misses       5754     6701    +947     

[awaelchli]

Thanks!

[Borda]

• changelog

[tshu-w]

Congratulations on the release of Lightning 2.0! I can't wait to update and try it out.

@awaelchli However, I noticed that some contributors seem to be missing from the releases page, and I feel a little loss not seeing myself included in such a significant update.

[awaelchli]

Hey @tshu-w I will make sure you are included and I'll rerun the script fetching the contributors to make sure nobody gets missed.