Make commit hash in summary box selectable

[james-huang]

Problem description Sometimes after browsing I'd like to copy a git hash for use in another application. "..." -> copy is a little tedious.

Preferred solution

The most intuitive thing would be to make the "commit hash" selectable

Screenshots

[srbs]

duplicates: #716, #580

[themilkman]

I am not sure if I really understand the feature request correctly, but I can simply do a right click on the hash and copy it via context menu, using the "..." button is not required.