* 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

No need to convert to the same type.

* Experimental support for git commit graph files and bloom filter index

Signed-off-by: Filip Navara <filip.navara@gmail.com>

* Force vendor of commitgraph

Signed-off-by: Filip Navara <filip.navara@gmail.com>

* Remove bloom filter experiment and debug prints

* Remove old code for building commit graphs

* Remove unused function

* Remove mmap usage

* gofmt

* sort vendor/modules.txt

* Add copyright header and log commit-graph error

* 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>