Use stable prefixes MSC3827 (#9092)

src/components/views/settings/tabs/user/LabsUserSettingsTab.tsx

@@ -66,7 +66,7 @@ export default class LabsUserSettingsTab extends React.Component<{}, IState> {
             this.setState({ showJumpToDate });
         });
 
-        cli.doesServerSupportUnstableFeature("org.matrix.msc3827").then((showExploringPublicSpaces) => {
+        cli.doesServerSupportUnstableFeature("org.matrix.msc3827.stable").then((showExploringPublicSpaces) => {
             this.setState({ showExploringPublicSpaces });
         });
 

src/components/views/spaces/SpaceCreateMenu.tsx

@@ -52,9 +52,9 @@ export const createSpace = async (
         createOpts: {
             name,
             preset: isPublic ? Preset.PublicChat : Preset.PrivateChat,
-            visibility: (isPublic && await MatrixClientPeg.get().doesServerSupportUnstableFeature("org.matrix.msc3827"))
-                ? Visibility.Public
-                : Visibility.Private,
+            visibility: (
+                isPublic && await MatrixClientPeg.get().doesServerSupportUnstableFeature("org.matrix.msc3827.stable")
+            ) ? Visibility.Public : Visibility.Private,
             power_level_content_override: {
                 // Only allow Admins to write to the timeline to prevent hidden sync spam
                 events_default: 100,

src/components/views/spaces/SpaceSettingsVisibilityTab.tsx

@@ -40,7 +40,7 @@ interface IProps {
 const SpaceSettingsVisibilityTab = ({ matrixClient: cli, space, closeSettingsFn }: IProps) => {
     const [error, setError] = useState("");
     const serverSupportsExploringSpaces = useAsyncMemo<boolean>(async () => {
-        return cli.doesServerSupportUnstableFeature("org.matrix.msc3827");
+        return cli.doesServerSupportUnstableFeature("org.matrix.msc3827.stable");
     }, [cli], false);
 
     const userId = cli.getUserId();