mu4e: re-add removed mu4e-compose-begin/end-commands

[LemonBreezes]

The commands mu4e-compose-begin and mu4e-compose-end were removed in commit
djcb/mu@85bfe76 of version 1.12.0 of mu. This commit re-adds these commands to the evil collection for mu4e.

[dschrempf]

Thanks!

Apparently an interactive functin needs to be changed to a non-interactive one:

modes/mu4e/evil-collection-mu4e.el:119:30:Error: ‘beginning-of-buffer’ is for interactive use only; use ‘(goto-char (point-min))’ instead.

[LemonBreezes]

Thanks!

Apparently an interactive functin needs to be changed to a non-interactive one:

modes/mu4e/evil-collection-mu4e.el:119:30:Error: ‘beginning-of-buffer’ is for interactive use only; use ‘(goto-char (point-min))’ instead.

Ok! I just fixed it.

[meliache]

Great, I stumbled upon the same issue and cool that you fixed it already. This PR fixes #781, which you certainly know since you opened it, but it's lot linked to the issue, so I hereby mention it so that people who find the issue first find a link to this PR.

The removal seems to have been a by-product of trying to follow more closely Gnus and its message-mode, which has its own functions to go to the signature, body, etc, so maybe these mu4e-specific functions were deemed unnecessary. Thinking of that, we might even consider porting these functions to evil-collections-gnus. But for now, I think it's fine keeping it here in mu4e only as it's consistent with its old behavior.

[condy0919]

Good job