message: use capture-element modifier
diff: <OsfFooter />
  <CookieBanner />
  </div>
  -<div
  - {{! This is where dialog boxes are wormhole'd }}
  - {{did-insert (action (mut this.osfModalState.dialogWormholeTarget))}}
  - {{will-destroy (action (mut this.osfModalState.dialogWormholeTarget) null)}}
  -></div>
  +<div {{capture-element (action (mut this.osfModalState.dialogWormholeTarget))}}></div>
  <OsfModeFooter />
  