Summary:
When a column is added the rename popup had a disabled save button.
Now we always show either:
Just "Close" if there are no changes.
"Save" and "Cancel" if there are changes.
Also, the description is trimmed when saved through the creator panel.
Test Plan: Added
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3872
Summary: Column description and new renaming popup for the GridView.
Test Plan: Updated
Reviewers: georgegevoian
Reviewed By: georgegevoian
Differential Revision: https://phab.getgrist.com/D3838