refactor(editor): rename doc to store on block components (#12173)

<!-- This is an auto-generated comment: release notes by coderabbit.ai -->

## Summary by CodeRabbit

- **Refactor**
  - Unified internal data access by replacing all references from `doc` to `store` across all components, blocks, widgets, and utilities. This affects how readonly state, block operations, and service retrieval are handled throughout the application.
- **Tests**
  - Updated all test utilities and test cases to use `store` instead of `doc` for document-related operations.
- **Chores**
  - Updated context providers and property names to reflect the change from `doc` to `store` for improved consistency and maintainability.

No user-facing features or behaviors have changed.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

blocksuite/affine/blocks/embed/src/embed-github-block/utils.ts

@@ -110,7 +110,7 @@ export async function refreshEmbedGithubUrlData(
 
     if (signal?.aborted) return;
 
-    embedGithubElement.doc.updateBlock(embedGithubElement.model, {
+    embedGithubElement.store.updateBlock(embedGithubElement.model, {
       image,
       status,
       statusReason,
@@ -144,7 +144,7 @@ export async function refreshEmbedGithubStatus(
 
   if (!githubApiData.status || signal?.aborted) return;
 
-  embedGithubElement.doc.updateBlock(embedGithubElement.model, {
+  embedGithubElement.store.updateBlock(embedGithubElement.model, {
     status: githubApiData.status,
     statusReason: githubApiData.statusReason,
     createdAt: githubApiData.createdAt,