docs: fix grammatical errors in the guides and API documentation (#29928)

Fix grammatical errors in the DI and HttpClient guides as well as the Resolve API documentaiton.

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PR Close #29928

aio/content/guide/dependency-injection.md

@@ -209,7 +209,7 @@ Learn more in the [Testing](guide/testing) guide.
 
 ## Services that need other services 
 
-Service can have their own dependencies. `HeroService` is very simple and doesn't have any dependencies of its own. Suppose, however, that you want it to report its activities through a logging service. You can apply the same *constructor injection* pattern,
+Services can have their own dependencies. `HeroService` is very simple and doesn't have any dependencies of its own. Suppose, however, that you want it to report its activities through a logging service. You can apply the same *constructor injection* pattern,
 adding a constructor that takes a `Logger` parameter.
 
 Here is the revised `HeroService` that injects `Logger`, side by side with the previous service for comparison.

aio/content/guide/http.md

@@ -750,7 +750,7 @@ with the injected `MessageService`.
   header="app/http-interceptors/logging-interceptor.ts)">
 </code-example>
 
-The RxJS `tap` operator captures whether the request succeed or failed.
+The RxJS `tap` operator captures whether the request succeeded or failed.
 The RxJS `finalize` operator is called when the response observable either errors or completes (which it must),
 and reports the outcome to the `MessageService`.
 

packages/router/src/interfaces.ts

@@ -264,7 +264,7 @@ export type CanDeactivateFn<T> =
 /**
  * @description
  *
- * Interface that class can implement to be a data provider.
+ * Interface that classes can implement to be a data provider.
  *
  * ```
  * class Backend {