Update to handle non-int64 IDs Pleroma/Akkoma and GotoSocial use opaque IDs rather than `int64`s like Mastodon which means that `madon` can't talk to either of those. This commit updates everything that can be an ID to `madon.ActivityID` which is an alias for `string` - can't create a specific type for it since there's more than a few places where they're concatenated directly to strings for URLs, etc. Which means it could just as easily be a direct `string` type itself but I find that having distinct types can often make the code more readable and understandable. One extra bit is that `statusOpts` has grown a `_hasReplyTo` boolean to indicate whether the `--in-reply-to` flag was given or not because we can't distinguish because "empty because default" or "empty because given and empty". Another way around this would be to set the default to some theoretically impossible or unlikely string but you never know when someone might spin up an instance where, e.g., admin posts have negative integer IDs.

# Binaries
madonctl
*.exe
*.test

*.swp

.goxc*
doc
builds