Add left padding for chunk header of split diff view (#13397)
Add left padding for chunk header of split diff view (#13397)

This commit adds 10px padding-left on chunk header element
(which is `<span>`).

Signed-off-by: Bagas Sanjaya <818e5151593b2d2687964f0b8c2b102b8b80928c@gmail.com>

Co-authored-by: zeripath <6a547fdd28db89120bdd70d4af1f9ba672ccd43a@cantab.net>

go-gitea/gitea,go-gitea/gitea,go-gitea/gitea