Run component tests with a real store and use renderWithContext everywhere (#25217)

* Change renderWithFullContext to not mock Redux store

* Remove renderWithIntl and renderWithIntlAndStore

* Rename renderWithFullContext to renderWithContext

* Use renderWithContext for WS context

webapp/platform/types/src/utilities.ts

@@ -14,7 +14,14 @@ export type RelationOneToManyUnique<E1 extends {id: string}, E2 extends {id: str
 export type IDMappedObjects<E extends {id: string}> = RelationOneToOne<E, E>;
 
 export type DeepPartial<T> = {
-    [P in keyof T]?: DeepPartial<T[P]>;
+    // For each field of T, make it optional and...
+    [K in keyof T]?:
+        // If that field is an object, make it a deep partial object
+        T[K] extends object ? DeepPartial<T[K]> :
+        // Else if that field is an optional object, make that a deep partial object
+        T[K] extends object | undefined ? DeepPartial<T[K]> :
+        // Else leave it as an optional primitive
+        T[K];
 }
 
 export type ValueOf<T> = T[keyof T];
@@ -26,4 +33,4 @@ export type RequireOnlyOne<T, Keys extends keyof T = keyof T> =
 Pick<T, Exclude<keyof T, Keys>> & {[K in Keys]-?: Required<Pick<T, K>> & Partial<Record<Exclude<Keys, K>, undefined>>}[Keys];
 
 export type Intersection<T1, T2> =
-Omit<Omit<T1&T2, keyof(Omit<T1, keyof(T2)>)>, keyof(Omit<T2, keyof(T1)>)>;
+Omit<Omit<T1&T2, keyof(Omit<T1, keyof(T2)>)>, keyof(Omit<T2, keyof(T1)>)>;