fix(ui): chip wrap below the heatmap shows the norm title too

The compact chips under the heatmap showed only [Tier-Badge]
jurabk paragraph (e.g. 'T4 GewO § 14'), which was enough for a
methodologically oriented reader but not for someone scanning
'what was that pilot norm about?'. Adds a muted mid-dot + the
norm.title after the paragraph, so each chip now reads:

  T4 · amtlich  GewO § 14  ·  Anzeigepflicht

The chips stay clickable, navigation behaviour unchanged.

Signed-off-by: flemming-it <sf@flemming.it>

app/lib/pages/heatmap_page.dart

@@ -112,6 +112,19 @@ class _HeatmapPageState extends State<HeatmapPage> {
                                     '${e.norm.jurabk} ${e.norm.paragraph}',
                                     style: t.labelLarge,
                                   ),
+                                  Text(
+                                    '  ·  ',
+                                    style: t.labelLarge?.copyWith(
+                                      color: ReclaimColors.mute,
+                                    ),
+                                  ),
+                                  Text(
+                                    e.norm.title,
+                                    style: t.labelLarge?.copyWith(
+                                      color: ReclaimColors.mute,
+                                      fontWeight: FontWeight.w400,
+                                    ),
+                                  ),
                                 ],
                               ),
                             ),