refactor(course-outline): improve query cache handling and remove redux thunks (#2884)

- Centralizes and reuses query cache handling logic:
Introduces a `ParentIds` type (src/generic/types.ts) and standardizes its use across data/API hooks for updating or invalidating parent/child query caches.
- Ensures cache coherence using `cancelQueries` before updating query data:
Before calling `setQueryData` for any block, any inflight queries are cancelled to prevent race conditions and stale UI.
- Simplifies post-sync/invalidation flows:
Removes Redux thunk usages in favor of direct query invalidations using React Query APIs within course outline cards, sidebars, publish modal, and `unlinkmodal`.
- Refactors data types for clarity:
Splits XBlock into `XBlockBase` and derived interfaces so the presence of `childInfo` is explicit.
- Cleans up redundant code and props:
Removes unnecessary `memoization`, `useDispatch` imports, and duplicate logic in React components.

src/data/types.ts

@@ -70,7 +70,7 @@ export interface UpstreamInfo {
   isReadyToSyncIndividually?: boolean,
 }
 
-export interface XBlock {
+export interface XBlockBase {
   id: string;
   locator: string;
   usageKey: string;
@@ -102,7 +102,6 @@ export interface XBlock {
   highlightsEnabled: boolean;
   highlightsPreviewOnly: boolean;
   highlightsDocUrl: string;
-  childInfo: XblockChildInfo;
   ancestorHasStaffLock: boolean;
   staffOnlyMessage: boolean;
   hasPartitionGroupComponents: boolean;
@@ -127,7 +126,11 @@ export interface XBlock {
   upstreamInfo?: UpstreamInfo;
 }
 
-export type UnitXBlock = Omit<XBlock, 'childInfo'>;
+export interface XBlock extends XBlockBase {
+  childInfo: XblockChildInfo;
+}
+
+export interface UnitXBlock extends XBlockBase {}
 
 interface OutlineError {
   data?: string;