Fix typo and use T for generic for consistency

Author: Gudahtt

src/BaseControllerV2.test.ts

@@ -243,7 +243,7 @@ describe('getAnonymizedState', () => {
     expect(anonymizedState).toEqual({ txMeta: { value: 10 } });
   });
 
-  it('should allow returning a ntested partial object from an anonymizing function', () => {
+  it('should allow returning a nested partial object from an anonymizing function', () => {
     const anonymizeTransactionHash = (txMeta: {
       hash: string;
       value: number;

src/BaseControllerV2.ts

@@ -63,9 +63,9 @@ export type StateMetadata<T> = {
  *   identifiable), or is set to a function that returns an anonymized
  *   representation of this state.
  */
-export interface StatePropertyMetadata<P> {
+export interface StatePropertyMetadata<T> {
   persist: boolean;
-  anonymous: boolean | Anonymizer<P>;
+  anonymous: boolean | Anonymizer<T>;
 }
 
 /**