0.7.3 Several Enhancements

What's Changed

• Add payment reminder email and API refresh buttons #20
• Fix update_tournament wrong teams #21
• Fix update_tournament duplicating matches #22
• add recalculate_points() shell command #27
• fix point recalculation on api update #27
• improve match stats sorting #27
• Fix sorting of match predictions #28 & #29
• Fix issue #33 of repeated welcome emails #34
• Add user prediction statistics to tournament edit admin interface #24 (B) #34
• Enhance github copilot instructions #34

Full Changelog: 0.6.0...0.7.3