Root Cause: Original content in magnification switch shortcut dialog needs to have different versions for different accessibility software shortcuts. Use the generic content and new flow to replace it.
Solution: Apply new flow from UX suggestion.
Bug: 210593079
Test: make RunSettingsRoboTests ROBOTEST_FILTER=MagnificationModePreferenceControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AccessibilityDialogUtilsTest
Change-Id: Id09b8847cca4fce1f3fb77770a03bff53ae05855