Issue #3069553 by martin107: Standardise name 'ThemeFormSettingsTest'

core/modules/system/tests/src/FunctionalJavascript/ThemeFormSettingsTest.php → core/modules/system/tests/src/FunctionalJavascript/ThemeSettingsFormTest.php

@@ -11,7 +11,7 @@
  *
  * @group system
  */
-class ThemeFormSettingsTest extends WebDriverTestBase {
+class ThemeSettingsFormTest extends WebDriverTestBase {
 
   use TestFileCreationTrait;