Pin @types/react to avoid breakage
Pin @types/react to avoid breakage

Seems like the DefinitelyTyped package for React broke us
by [stopping SVGElement from inheriting the attributes of
HTMLElement](https://github.com/DefinitelyTyped/DefinitelyTyped/pull/14618).

Let's pin to the last known good version and wait and see
where the discussion in that issue ends up.

hjobrien/desktop,gengjiawen/desktop,desktop/desktop,j-f1/forked-desktop,gengjiawen/desktop,BugTesterTest/desktops,say25/desktop,say25/desktop,j-f1/forked-desktop,gengjiawen/desktop,artivilla/desktop,j-f1/forked-desktop,j-f1/forked-desktop,desktop/desktop,artivilla/desktop,artivilla/desktop,BugTesterTest/desktops,kactus-io/kactus,shiftkey/desktop,shiftkey/desktop,kactus-io/kactus,kactus-io/kactus,hjobrien/desktop,say25/desktop,BugTesterTest/desktops,BugTesterTest/desktops,artivilla/desktop,shiftkey/desktop,hjobrien/desktop,hjobrien/desktop,desktop/desktop,say25/desktop,kactus-io/kactus,desktop/desktop,shiftkey/desktop,gengjiawen/desktop