[Feature Request] Commit Graph: Make number of lines configurable

[thomask77]

Hi!

Right now, the number of lines in the commit graph view is fixed to 100, which is too few in most cases.

• gitea/models/graph.go

  Line 44 in e2b2fd6

  "-n 100",

This should be made configurable in the app.ini file.

[kjellkvinge]

I agree, ref #832

[hetykai]

+1
If pagination is to hard to implement, this will be a good solution.