docs: add details to HttpUrlEncodingCodec API description (#28507)

PR Close #28507

packages/common/http/src/params.ts

@@ -23,7 +23,10 @@ export interface HttpParameterCodec {
 
 /**
  * A `HttpParameterCodec` that uses `encodeURIComponent` and `decodeURIComponent` to
- * serialize and parse URL parameter keys and values.
+ * serialize and parse URL parameter keys and values. If URL query parameters are
+ * passed without encoding, they might be misinterpreted at the receiving end. Use the
+ * `HttpParameterCodec` to encode the query-string values. The same class can be used to decode the
+ * encoded query-string values.
  *
  * @publicApi
  */