PLT-4524 Update password reset page (#4522)

* Implement PLT-4524 Update password reset page

* fix lints

* changes based on review

* update per request/review

* update tests

* add css for alert-success

* change per request

api/user_test.go

@@ -1256,18 +1256,23 @@ func TestSendPasswordReset(t *testing.T) {
 	LinkUserToTeam(user, team)
 	store.Must(Srv.Store.User().VerifyEmail(user.Id))
 
-	if _, err := Client.SendPasswordReset(user.Email); err != nil {
+	if result, err := Client.SendPasswordReset(user.Email); err != nil {
 		t.Fatal(err)
+	} else {
+		resp := result.Data.(map[string]string)
+		if resp["email"] != user.Email {
+			t.Fatal("wrong email")
+		}
+	}
+
+	if _, err := Client.SendPasswordReset("junk@junk.com"); err != nil {
+		t.Fatal("Should have errored - bad email")
 	}
 
 	if _, err := Client.SendPasswordReset(""); err == nil {
 		t.Fatal("Should have errored - no email")
 	}
 
-	if _, err := Client.SendPasswordReset("junk@junk.com"); err == nil {
-		t.Fatal("Should have errored - bad email")
-	}
-
 	authData := model.NewId()
 	user2 := &model.User{Email: strings.ToLower(model.NewId()) + "success+test@simulator.amazonses.com", Nickname: "Corey Hulen", AuthData: &authData, AuthService: "random"}
 	user2 = Client.Must(Client.CreateUser(user2, "")).Data.(*model.User)