feat(core): support create new template in starter-bar (#10570)

packages/frontend/core/src/blocksuite/block-suite-editor/starter-bar.tsx

@@ -1,3 +1,4 @@
+import { MenuSeparator } from '@affine/component';
 import {
   handleInlineAskAIAction,
   pageAIGroups,
@@ -6,7 +7,10 @@ import { DocsService } from '@affine/core/modules/doc';
 import { EditorService } from '@affine/core/modules/editor';
 import { FeatureFlagService } from '@affine/core/modules/feature-flag';
 import { TemplateDocService } from '@affine/core/modules/template-doc';
-import { TemplateListMenu } from '@affine/core/modules/template-doc/view/template-list-menu';
+import {
+  TemplateListMenu,
+  TemplateListMenuAdd,
+} from '@affine/core/modules/template-doc/view/template-list-menu';
 import { useI18n } from '@affine/i18n';
 import track from '@affine/track';
 import { PageRootBlockComponent } from '@blocksuite/affine/blocks';
@@ -134,6 +138,12 @@ const StarterBarNotEmpty = ({ doc }: { doc: Store }) => {
               open: templateMenuOpen,
               onOpenChange: onTemplateMenuOpenChange,
             }}
+            suffixItems={
+              <>
+                <MenuSeparator />
+                <TemplateListMenuAdd />
+              </>
+            }
           >
             <Badge
               data-testid="template-docs-badge"