Tweaks to footer text

This commit updates the footer text following feedback from editorial.
WordPress · SiobhyB · Aug 9, 2021 · Jun 28, 2021 · Jul 8, 2021 · Jul 13, 2021
commit 27f2623b0344d51f0a25d39f1422d6e905cbf114
diff --git a/packages/block-library/src/image/edit.native.js b/packages/block-library/src/image/edit.native.js
@@ -567,7 +567,7 @@ export class ImageEdit extends Component {
 				<PanelBody>
 					<FooterMessageControl
 						label={ __(
-							'Note: Changes to featured image will not be affected by the undo/redo buttons'
+							'Changes to featured image will not be affected by the undo/redo buttons.'
 						) }
 					/>
 				</PanelBody>