Modify screenshots to include new changes in RepoSense report

[HCY123902]

What problem(s) did you run into that caused you to request additional documentation? What, if any, existing documentation relates to this proposal?

Several screenshots in the User Guide and the Developer Guide are obsolete with the frontend changes introduced in #1453, #1883, and #1939, such as the title highlight in the summary view, number of deletions in the commits panel, and the inclusion of author labels for a merged group in the authorship contribution panel.

What would you like added or modified in the documentation?

The screenshots should include the new frontend changes indicated above, and related description can be updated accordingly