UI image selection (#97)

src/legendary/legendary_platform.rs

@@ -28,7 +28,7 @@ impl Platform<LegendaryGame, Box<dyn Error>> for LegendaryPlatform {
             .settings
             .executable
             .clone()
-            .unwrap_or("legendary".to_string());
+            .unwrap_or_else(|| "legendary".to_string());
         let legendary = legendary_string.as_str();
         execute_legendary_command(legendary)
     }
@@ -49,7 +49,7 @@ impl Platform<LegendaryGame, Box<dyn Error>> for LegendaryPlatform {
     }
 
     fn needs_proton(&self, _input: &LegendaryGame) -> bool {
-        return false;
+        false
     }
 }