Hide unactive on explore users and some refactors (#2741)

* hide unactive on explore users and some refactors

* fix test for removed Organizations

* fix test for removed Organizations

* fix imports

* fix logic bug

* refactor the toConds

* Rename TestOrganizations to TestSearchUsers and add tests for users

* fix other tests

* fix other tests

* fix watchers tests

* fix comments and remove unused code

models/issue_watch_test.go

@@ -25,7 +25,7 @@ func TestCreateOrUpdateIssueWatch(t *testing.T) {
 func TestGetIssueWatch(t *testing.T) {
 	assert.NoError(t, PrepareTestDatabase())
 
-	_, exists, err := GetIssueWatch(1, 1)
+	_, exists, err := GetIssueWatch(9, 1)
 	assert.Equal(t, true, exists)
 	assert.NoError(t, err)