feat(base): page renderer dispatches to base view when page.isBase

- Add isBase to page repo baseFields so it is always selected
- Add isBase to sidebar pages query select list
- Add isBase to client IPage type
- In PageContent, render <BaseTable pageId={page.id} /> when page.isBase
  is true instead of the TipTap editor path

apps/server/src/core/page/services/page.service.ts

@@ -289,6 +289,7 @@ export class PageService {
         'parentPageId',
         'spaceId',
         'creatorId',
+        'isBase',
         'deletedAt',
       ])
       .select((eb) => this.pageRepo.withHasChildren(eb))

apps/server/src/database/repos/page/page.repo.ts

@@ -38,6 +38,7 @@ export class PageRepo {
     'spaceId',
     'workspaceId',
     'isLocked',
+    'isBase',
     'createdAt',
     'updatedAt',
     'deletedAt',