Fix workspace user header null render and ignore .idea

RpgRoller/Components/Pages/Workspace.razor

@@ -25,7 +25,14 @@
                 <p>Tabletop utility cockpit</p>
             </div>
             <div class="header-group context">
-                <p><strong>@User!.DisplayName</strong> <span class="muted">(@User.Username)</span></p>
+                @if (User is null)
+                {
+                    <p><strong>Loading user...</strong></p>
+                }
+                else
+                {
+                    <p><strong>@User.DisplayName</strong> <span class="muted">(@User.Username)</span></p>
+                }
                 <p>Campaign: <strong>@(SelectedCampaignName ?? "No campaign selected")</strong></p>
                 <p>Active: <strong>@(ActiveCharacterName ?? "None selected")</strong></p>
             </div>