MM-10007 Send an admin and regular WS events when a user is updated (#8588)

* Add user.DeepCopy() function

* Add omit admins/non-admins to WS broadcast and use for updating users

* Updates per feedback and adding unit test for ShouldSendEvent

model/utils_test.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
 
@@ -47,6 +48,17 @@ func TestAppErrorJunk(t *testing.T) {
 	}
 }
 
+func TestCopyStringMap(t *testing.T) {
+	itemKey := "item1"
+	originalMap := make(map[string]string)
+	originalMap[itemKey] = "val1"
+
+	copyMap := CopyStringMap(originalMap)
+	copyMap[itemKey] = "changed"
+
+	assert.Equal(t, "val1", originalMap[itemKey])
+}
+
 func TestMapJson(t *testing.T) {
 
 	m := make(map[string]string)