Add --dry IMAPsync Parameter as Button to select for SyncJobs

[raph-topo]

Without this, setting Edit sync job > Custom parameters > --dry fails with:

(Even though --dry is a placeholder suggestion)

[MAGICCC]

I guess we can also allow --releasecheck @DerLinkman

[raph-topo]

I also added the very useful --f1f2 in my instance, what do you think about that?

[DerLinkman]

I guess we can also allow --releasecheck @DerLinkman

Nah that is not necessarily i think.

[DerLinkman]

--dry is not a problem. That dry option might make more sense as a clickable selection button in my eyes though.

[DerLinkman]

Tested it and it works but don't trust my php skills here. @FreddleSpl0it can you take a look at this whole thing?

[DerLinkman]

Looks like this now:

(Enabled for the Screenshot, disabled per default)

[DerLinkman]

Btw, don't see a problem why --f1f2 should not be allowed.

[raph-topo]

Thank you for having accepted and improved this!