create feature parity of command pipe

[VuiMuich]

Description

As brought up on the discord some commands where missing in the command pipe and therefore also in leftwm-command.
It was intended to solve this in #682, but as that got delayed I suggest pulling this patch ahead.

In the review of said PR we had discussed the idea of reordering by categories, so here goes my suggestion for it.
As this ordering is purly a cosmetic change to help with future addition of commands and keeping track, whats there, it can easily be redone if it is not liked.
But if we like it, I suggest to procede to refactor all other occurences of the complete set of commands in the same order, to help navigating the code.

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

Updated user documentation:

No user doc update required.

Checklist:

• Ran make test-full locally with no errors or warnings reported
• Manual page has been updated accordingly
• Wiki pages have been updated accordingly (to perform after merge)

[AethanFoot]

Looks Good!