Patch is attached.
As explained in the comment I had to correct a few problems:
1. Tests always fail, but (in my experience) the final application is
stable.
2. rednotebook  uses the GI_TYPELIB_PATH and LD_LIBRARY_PATH to find
webkitgtk.

Furthermore:

- The commit message was killed/yanked from commit
  072e986ec808690db991e018d6ceee868b5b5f4a and adjusted.

- I made gnu/packages/journal.scm to add other similar journal/diary
  applications. Because I do not like naming sources for the only
  package defined within, especially when the package is simple, I
  recommend moving the jrnl package definition to it. Say the word and
  I will produce the patch to do this. Perhaps we should discuss the
  idea of organizing packages by function on the devel mailing list?

  - I also plan to define a package for other journal applications
    (like those listed between rednotebook and jrnl at
    <https://www.maketecheasier.com/best-journal-apps-for-linux/> and
    any other recommendations).

Knowing I am likely to err, I expect you (whoever reviews this patch)
to point out everything you don't like so I can fix it before you
approve and commit to savannah ;)

Thanks,
-Jesse