Refactor Terms

[Gustl22]

• Fight to Bout
• Round to Period (this was already the case)
• Round describes the round of a tournament, e.g. Qualification rounds, Elimination rounds, Repechage rounds, Finals
• Tournament to Competition Einzelturnier, team competition is Mannschaftsturnier, team_match does not really have an alternative
• Participant to Athlete

See https://github.com/Oberhauser-Dev/wrestling_scoreboard/tree/main/wrestling_scoreboard_client/docs/wrestling_rules for more terms

Source: https://uww.org/sites/default/files/media/document/wrestling_rules_1.pdf