Tighten game score format to "2:3" / "-:-"

Drop the spaces around the colon. Score field is still monospaced so
the home logo lines up across rows; the tighter format reads more
like a hockey score and frees up some horizontal slack on narrow
widths.

IceGlass-iOS/Views/GameRow.swift

@@ -47,7 +47,7 @@ struct GameRow: View {
                 .lineLimit(1)
                 .fixedSize()
 
-            Text(showScore ? scoreText : "- : -")
+            Text(showScore ? scoreText : "-:-")
                 .font(.title3.monospaced())
                 .fontWeight(.bold)
                 .foregroundStyle(.secondary)
@@ -102,7 +102,7 @@ struct GameRow: View {
     private var scoreText: String {
         let a = game.awayTeam.score ?? 0
         let h = game.homeTeam.score ?? 0
-        return "\(a) : \(h)"
+        return "\(a):\(h)"
     }
 
     private func open() {