Cleaned up name submission criteria (#2835)

* Cleaned up name submission criteria

* chore: formatting

---------

Co-authored-by: ggurdin <ggurdin@gmail.com>

lib/pages/new_group/new_group.dart

@@ -48,6 +48,8 @@ class NewGroupController extends State<NewGroup> {
 
   bool requiredCodeToJoin = false;
   // bool publicGroup = false;
+
+  bool get canSubmit => nameController.text.trim().isNotEmpty;
   // Pangea#
   bool groupCanBeFound = false;
 
@@ -250,10 +252,11 @@ class NewGroupController extends State<NewGroup> {
         focusNode.requestFocus();
         return;
       }
-      // Pangea#
 
-      if (nameController.text.trim().isEmpty &&
-          createGroupType == CreateGroupType.space) {
+      // if (nameController.text.trim().isEmpty &&
+      // createGroupType == CreateGroupType.space) {
+      if (!canSubmit) {
+        // Pangea#
         setState(() => error = L10n.of(context).pleaseFillOut);
         return;
       }

lib/pages/new_group/new_group_view.dart

@@ -131,9 +131,9 @@ class NewGroupView extends StatelessWidget {
                   onFieldSubmitted: (value) {
                     controller.loading ? null : controller.submitAction();
                   },
-                  validator: (value) => value == null || value.isEmpty
-                      ? L10n.of(context).pleaseFillOut
-                      : null,
+                  validator: (value) => controller.canSubmit
+                      ? null
+                      : L10n.of(context).pleaseFillOut,
                   focusNode: controller.focusNode,
                   // Pangea#
                 ),