Fix crop ratio combobox not updating crop when text didn't change
Summary:
For example, "US Letter" is duplicated - one for landscape, one
for portrait. Since the crop was only updated when the combobox
text changed, switching between these two didn't do anything.
This patch adds a connection to the currentIndexChanged signal
so that changes like this are detected.
Depends on D11378
Test Plan:
- Open crop tool > Advanced settings
- Change Ratio to US Letter (portrait)
- Change Ratio to US Letter (landscape)
- Repeat for the ISO ratio
Reviewers: Gwenview, rkflx
Reviewed By: Gwenview, rkflx
Differential Revision: https://phabricator.kde.org/D11379