UI: Remove date from strip collage, reduce collage margins

src/screens/PreviewScreen.tsx

@@ -410,7 +410,6 @@ export default function PreviewScreen({
             </View>
             <View style={styles.collageFooter}>
               <Text style={styles.collageFooterText}>{eventText}</Text>
-              <Text style={styles.collageFooterDate}>{new Date().toLocaleDateString('de-DE')}</Text>
             </View>
           </View>
         );
@@ -916,18 +915,18 @@ const styles = StyleSheet.create({
     width: '100%',
     height: '100%',
     backgroundColor: '#ffffff',
-    padding: 16,
+    padding: 6,
     alignItems: 'center',
     justifyContent: 'space-between',
   },
   collageFooter: {
-    height: 50,
+    height: 35,
     justifyContent: 'center',
     alignItems: 'center',
     width: '100%',
     borderTopWidth: 1,
     borderTopColor: '#e0e0e0',
-    marginTop: 10,
+    marginTop: 4,
   },
   collageFooterText: {
     fontSize: 16,