Advanced filtering options for export commands

[Digital39999]

Since feature requests aren't accepted as issues, can I submit a PR directly for adding filtering options to export commands?

I've implemented --ignore-channels, --only-channels, --ignore-categories, etc. for the export commands. No breaking changes - just additional optional parameters that extend existing functionality. Realized feature requests currently aren't accepted little too late.

The code is ready and would solve common use cases like excluding bot channels or some very large chats while using exportdm command or exporting specific categories without manually listing every channel ID.

Is it acceptable to submit this kind of enhancement PR without a corresponding issue, or to wait potentially months for next major release?