In investigating #7947 it has become clear that the storage component of go-git repositories needs closing.
This PR adds this Close function and adds the Close functions as necessary.
In TransferOwnership the ctx.Repo.GitRepo is closed if it is open to help prevent the risk of multiple open files.
Fixes#7947
* Fix reading notes from nested trees
The GIT documentation for notes states "Permitted pathnames have the
form ab/cd/ef/.../abcdef...: a sequence of directory names of two
hexadecimal digits each followed by a filename with the rest of
the object ID."
* Add test case
* Fix new lines
* Show git-notes
* Make git-notes heading text localizable
* Refactor git-notes data fetching to a separate function
* Display the author and time of git notes
* Move note bubble inside the commit bubble
* Revert "Move note bubble inside the commit bubble"
This reverts commit c0951fe0e3.
* Add test for git-notes
* testing ui
* Polish CSS
* Apply suggestions from code review
Co-Authored-By: Lauris BH <lauris@nix.lv>
