This now allows for leaving the status panel and returning back to the
same log command. Previously any return to the status panel would result
in the next command in the list being shown. Now, you need to press `a`,
with a log command being rendered, to rotate to the next
allBranchesLogCmd.
- Introduced a new optional user config command, allBranchesLogCmds
- When pressing 'a' in the Status view, cycle between non-empty, non-identical log commands
- There will always be at least one command to run, since allBranhesLogCmd has a default
- Update documentation & write an integration test
- Update translation string
