FIX: apply video preview workaround to iOS

FIX: apply video preview workaround to iOS

Followup to 9e160f5

diff --git a/app/assets/javascripts/discourse/app/initializers/post-decorations.js b/app/assets/javascripts/discourse/app/initializers/post-decorations.js
index 2146cbb..9bd683c 100644
--- a/app/assets/javascripts/discourse/app/initializers/post-decorations.js
+++ b/app/assets/javascripts/discourse/app/initializers/post-decorations.js
@@ -40,7 +40,7 @@ export default {
       );
 
       const caps = container.lookup("capabilities:main");
-      if (caps.isSafari) {
+      if (caps.isSafari || caps.isIOS) {
         api.decorateCookedElement(
           elem => {
             const video = elem.querySelector("video");

GitHub sha: a04573c2