Add Prettier and ESLint tooling (Refs #77)

src/lib/leaderboard-navigation.ts

@@ -12,10 +12,12 @@ export function leaderboardReturnHref(value: string | null | undefined): string
         const params = new URLSearchParams();
         for (const key of contextKeys) {
             const entry = url.searchParams.get(key);
-            if (entry || key === 'map' && entry !== null) params.set(key, entry!);
+            if (entry || (key === 'map' && entry !== null)) params.set(key, entry!);
         }
         return `/leaderboard${params.size ? `?${params}` : ''}`;
-    } catch { return '/leaderboard'; }
+    } catch {
+        return '/leaderboard';
+    }
 }
 
 export function playerContextHref(guid: string, source: string): string {
@@ -31,7 +33,8 @@ export function playerContextHref(guid: string, source: string): string {
     if (game === 't5' || game === 't6') params.set('game', game);
     if (map !== null && map.length <= 1024) params.set('map', map);
     if (players && /^[1-4]$/.test(players)) params.set('players', players);
-    if (metric && leaderboardMetrics.some(item => item.key === metric)) params.set('metric', metric);
+    if (metric && leaderboardMetrics.some((item) => item.key === metric))
+        params.set('metric', metric);
     return `/leaderboard/players/${encodeURIComponent(guid)}?${params}`;
 }