[Users] Fix exception on users?name=non_existant_name

Just redirect to the show page unconditionally, it handles it already

app/controllers/users_controller.rb

@@ -19,12 +19,7 @@ class UsersController < ApplicationController
 
   def index
     if params[:name].present?
-      @user = User.find_by_name(params[:name])
-      if @user.nil?
-        raise "No user found with name: #{params[:name]}"
-      else
-        redirect_to user_path(@user)
-      end
+      redirect_to user_path(id: params[:name])
     else
       @users = User.search(search_params).includes(:user_status).paginate(params[:page], limit: params[:limit], search_count: params[:search])
       respond_with(@users) do |format|

test/functional/users_controller_test.rb

@@ -12,14 +12,9 @@ class UsersControllerTest < ActionDispatch::IntegrationTest
         assert_response :success
       end
 
-      should "list all users for /users?name=<name>" do
-        get users_path, params: { name: @user.name }
-        assert_redirected_to(@user)
-      end
-
-      should "raise error for /users?name=<nonexistent>" do
-        get users_path, params: { name: "nobody" }
-        assert_response :error
+      should "redirect for /users?name=<name>" do
+        get users_path, params: { name: "some_username" }
+        assert_redirected_to(user_path(id: "some_username"))
       end
 
       should "list all users (with search)" do