refactor: Preserve button default messages

description for aria labels may explicitly reference intended screensaver use, but label names and ids should remain unchanged

src/editors/components/EditorFooter/__snapshots__/index.test.jsx.snap

@@ -48,7 +48,7 @@ exports[`EditorFooter snapshots Save Failed, error message raised 1`] = `
         }
       >
         <FormattedMessage
-          defaultMessage="Save Changes and Return to Learning Context"
+          defaultMessage="Save"
           description="Label for Save button"
           id="authoring.editorfooter.savebutton.label"
         />
@@ -143,7 +143,7 @@ exports[`EditorFooter snapshots renders as expected with default behavior 1`] =
         }
       >
         <FormattedMessage
-          defaultMessage="Save Changes and Return to Learning Context"
+          defaultMessage="Save"
           description="Label for Save button"
           id="authoring.editorfooter.savebutton.label"
         />

src/editors/components/EditorFooter/messages.js

@@ -7,7 +7,7 @@ export const messages = {
   cancelButtonAriaLabel: {
     id: 'authoring.editorfooter.cancelButton.ariaLabel',
     defaultMessage: 'Discard Changes and Return to Learning Context',
-    description: 'Aria label for cancel button',
+    description: 'Screensaver label for cancel button',
   },
   cancelButtonLabel: {
     id: 'authoring.editorfooter.cancelButton.label',
@@ -17,11 +17,11 @@ export const messages = {
   saveButtonAriaLabel: {
     id: 'authoring.editorfooter.savebutton.ariaLabel',
     defaultMessage: 'Save Changes and Return to Learning Context',
-    description: 'Aria label for save button',
+    description: 'Screensaver label for save button',
   },
   saveButtonLabel: {
     id: 'authoring.editorfooter.savebutton.label',
-    defaultMessage: 'Save Changes and Return to Learning Context',
+    defaultMessage: 'Save',
     description: 'Label for Save button',
   },
 };