fix: countdown badge back in header row (right-aligned), fix LED spacing

- Countdown badge in header: Gruppe A ... in 60 Tagen (right side)
- Urgent countdown also in header: Gruppe A ... Noch 9 Min!
- Removed separate countdownRow (was misplaced below kickoff)
- Reduced DSEG7 letter-spacing to fix "2 1:00" gap issue

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

frontend/src/components/MatchCard.module.css

@@ -48,12 +48,6 @@
 }
 
 
-/* Countdown — left-aligned row */
-.countdownRow {
-  display: flex;
-  margin-bottom: 4px;
-}
-
 .countdownBadge {
   font-size: 11px;
   font-weight: 700;
@@ -90,7 +84,8 @@
   font-family: 'DSEG7', 'Courier New', monospace;
   font-size: 18px;
   color: #FECC4C;
-  letter-spacing: 0.06em;
+  letter-spacing: 0.02em;
+  word-spacing: -0.1em;
   text-shadow:
     0 0 4px rgba(254, 174, 50, 0.9),
     0 0 12px rgba(254, 174, 50, 0.6),