Rewrite to a API trait.

gamenight-cli/src/domain/owned_games.rs

@@ -1,15 +1,16 @@
 use std::{collections::HashMap, fmt::Display};
 
 use crate::domain::game::Game;
+use crate::domain::location::Location;
 
 #[derive(Clone)]
-pub struct OwnedGames(pub HashMap<String, Vec<Game>>);
+pub struct OwnedGames (pub HashMap<String, Vec<(Game, Option<Location>)>>);
 
 impl Display for OwnedGames {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
         for (k,v) in &self.0 {
             write!(f, "{k}:\n")?;
-            for g in v {
+            for (g, _) in v {
                 write!(f, "\t{}\n", g.name)?;
             }
         }