feat: update Object.entries types

Added an optional generic type with string as the default type for the object argument in Object.entries. This makes the typing of this function “end-to-end”. For example, if Record<“value1” | “value2”, string> is passed as an argument, the output value will be [“value1” | “value2”, string][]

src/lib/es2017.object.d.ts

@@ -15,7 +15,7 @@ interface ObjectConstructor {
      * Returns an array of key/values of the enumerable own properties of an object
      * @param o Object that contains the properties and methods. This can be an object that you created or an existing Document Object Model (DOM) object.
      */
-    entries<T>(o: { [s: string]: T; } | ArrayLike<T>): [string, T][];
+    entries<T, K extends string = string>(o: { [Key in K]: T; } | ArrayLike<T>): [K, T][];
 
     /**
      * Returns an array of key/values of the enumerable own properties of an object