style: unified flag+time design across Dashboard and Spielplan

Dashboard:
- Flags aligned to top (flex-start) — consistent height regardless of name length
- LED time centered to flag height (64px)

Match Cards:
- Flags fullbleed (object-fit: cover), larger (56px), glassmorphism shine
- LED kickoff time replaces dash separator between flags
- Score appears at same position when Live/Finished
- Removed separate kickoffRow — cards are more compact
- scoreBox height matches flag height for vertical centering

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

frontend/src/pages/DashboardPage.module.css

@@ -103,12 +103,13 @@
   50% { opacity: 0.3; }
 }
 
-/* Center column: LED time between flags */
+/* Center column: LED time between flags, vertically centered to flag height */
 .heroCenter {
   display: flex;
   flex-direction: column;
   align-items: center;
-  gap: 4px;
+  justify-content: center;
+  height: 64px; /* matches flag box height */
   position: relative;
   z-index: 1;
 }
@@ -152,8 +153,8 @@
 .heroTeams {
   display: flex;
   justify-content: center;
-  align-items: center;
-  gap: 12px;
+  align-items: flex-start;
+  gap: 8px;
   margin: 16px 0 20px;
   position: relative;
   z-index: 1;