fix: 6565 - put back the fix about long bottom sheets (#6618)

Author: monsieurtanuki

packages/smooth_app/lib/generic_lib/bottom_sheets/smooth_bottom_sheet.dart

@@ -358,12 +358,14 @@ class SmoothModalSheet extends StatelessWidget {
         decoration: const BoxDecoration(
           borderRadius: BorderRadius.vertical(top: ROUNDED_RADIUS),
         ),
-        child: Column(
-          mainAxisSize: MainAxisSize.min,
-          children: <Widget>[
-            header,
-            bodyChild,
-          ],
+        child: SingleChildScrollView(
+          child: Column(
+            mainAxisSize: MainAxisSize.min,
+            children: <Widget>[
+              header,
+              bodyChild,
+            ],
+          ),
         ),
       ),
     );