fix: page-named toolbar title + ellipsized needs-modules chip (0.21.1)

With no flow open the toolbar header said 'Kein Flow geöffnet' and
read as the page title (usertest finding); it now names the page
('Flows') while the empty state keeps the explanatory sentence. The
'needs N modules' chip ellipsizes in the narrow flow list instead of
overflowing its row on longer German labels.

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

lib/src/flow_editor_page.dart

@@ -925,10 +925,13 @@ class _Toolbar extends StatelessWidget {
             ),
             const SizedBox(width: FaiSpace.xs),
           ],
+          // With no flow open the toolbar acts as the page header, so
+          // it says what the page IS ("Flows"), not what it lacks —
+          // the state sentence stays in the centered empty state.
           Text(
-            activeName == null ? strings.emptyTitle : '${activeName!}.yaml',
+            activeName == null ? strings.pageTitle : '${activeName!}.yaml',
             style: theme.textTheme.titleSmall?.copyWith(
-              fontFamily: 'monospace',
+              fontFamily: activeName == null ? null : 'monospace',
               fontWeight: FontWeight.w600,
               // Dirty file name renders in the primary accent
               // so the operator sees "this file has unsaved
@@ -1486,13 +1489,19 @@ class _MissingModulesBadge extends StatelessWidget {
         children: [
           const Icon(Icons.extension_off_outlined, size: 10, color: warn),
           const SizedBox(width: 4),
-          Text(
-            label,
-            style: theme.textTheme.labelSmall?.copyWith(
-              color: warn,
-              fontSize: 10,
-              fontWeight: FontWeight.w600,
-              letterSpacing: 0.2,
+          // Flexible + ellipsis: the chip sits in the narrow flow
+          // list, where the full label otherwise overflows by a few
+          // pixels (the tooltip still carries the complete text).
+          Flexible(
+            child: Text(
+              label,
+              overflow: TextOverflow.ellipsis,
+              style: theme.textTheme.labelSmall?.copyWith(
+                color: warn,
+                fontSize: 10,
+                fontWeight: FontWeight.w600,
+                letterSpacing: 0.2,
+              ),
             ),
           ),
         ],