Self dispatched workflow functions

[Keyrxng]

Now that the kernel' APP_ID and APP_PRIVATE_KEY have been exposed as org secrets I think I should go back to my original implementation where the worker for this plugin controlled the dispatching of it's own workflows for MTProto API (workrooms, etc...) features.

• with two config entries ubiquity-os kernel is dispatching tons of workflows for no reason which can be avoided
• self-dispatched means we can validate no-op payloads first
• it's cleaner and more efficient from a plugin standpoint
• removes the need for two entries in the config
• optimizes the github rate limit consumed by this plugin
• it's no longer considered "unsafe" to do so or the secrets wouldn't be exposed