Fix overflow issue

lib/ui/widgets/survey_widget.dart

@@ -91,17 +91,21 @@ class _SurveyWidgetState extends State<SurveyWidget> {
   }
 
   Widget _buildUserResponseFormWidget() {
-    return DropdownButton<SurveyChoice>(
-      hint: Text(tr("Respond to survey")),
-      items: survey.choices
-          .map(
-            (f) => DropdownMenuItem<SurveyChoice>(
-              value: f,
-              child: Text(f.name),
-            ),
-          )
-          .toList(),
-      onChanged: _respondToSurvey,
+    return ConstrainedBox(
+      constraints: BoxConstraints(maxWidth: 300),
+      child: DropdownButton<SurveyChoice>(
+        isExpanded: true,
+        hint: Text(tr("Respond to survey")),
+        items: survey.choices
+            .map(
+              (f) => DropdownMenuItem<SurveyChoice>(
+                value: f,
+                child: Text(f.name),
+              ),
+            )
+            .toList(),
+        onChanged: _respondToSurvey,
+      ),
     );
   }