Balance spacing around remote agent profile actions

Signed-off-by: Tom Brow <tomb@block.xyz>

mobile/lib/features/profile/user_profile_sheet.dart

@@ -66,11 +66,19 @@ class UserProfileSheet extends HookConsumerWidget {
   /// Optional actions supplied by the opening surface, below the profile tiles.
   final WidgetBuilder? contextualActions;
 
+  /// Space before the primary profile actions.
+  final double primaryActionsSpacing;
+
+  /// Space between primary actions and caller-supplied actions.
+  final double contextualActionsSpacing;
+
   const UserProfileSheet({
     super.key,
     required this.pubkey,
     this.names,
     this.contextualActions,
+    this.primaryActionsSpacing = Grid.xs + Grid.half,
+    this.contextualActionsSpacing = Grid.xs,
   });
 
   @override
@@ -264,7 +272,7 @@ class UserProfileSheet extends HookConsumerWidget {
                       ),
                     ],
 
-                    const SizedBox(height: Grid.xs + Grid.half),
+                    SizedBox(height: primaryActionsSpacing),
 
                     Row(
                       children: [
@@ -296,7 +304,7 @@ class UserProfileSheet extends HookConsumerWidget {
                         ),
                       ],
                     ),
-                    const SizedBox(height: Grid.xs),
+                    SizedBox(height: contextualActionsSpacing),
                     if (contextualActions != null)
                       Builder(builder: contextualActions!),
                   ],

mobile/lib/prototype/agents_sheet.dart

@@ -84,6 +84,8 @@ class _AgentsNavigation extends HookConsumerWidget {
                             ),
                             child: UserProfileSheet(
                               pubkey: pubkey,
+                              primaryActionsSpacing: Grid.md,
+                              contextualActionsSpacing: Grid.xxs,
                               contextualActions: (_) => DeleteAgentAction(
                                 controller: controller,
                                 pubkey: pubkey,

mobile/lib/prototype/delete_agent_action.dart

@@ -82,7 +82,7 @@ class DeleteAgentAction extends HookConsumerWidget {
     }
 
     return Padding(
-      padding: const EdgeInsets.only(top: Grid.xs),
+      padding: EdgeInsets.zero,
       child: Column(
         crossAxisAlignment: CrossAxisAlignment.stretch,
         children: [