* Adding flatpack_remote module
Includes contributions by oolongbrothers: adding documentation fixes, fixing import placements, fix module idempotency, improving error propagation.
* Aligns module with conventions and best practices
For improved robustness and readability; based on feedback by
dagwieers.
* Improves the module documentation
* Aligns copyright statement to conventions
* Renames remote > flatpakrepo_url and reworks documentation
Alexander Bethke