feat: vod display (#686)

* feat: preview for html5 supported videos

* fix: handle out of limit tags

* feat: support preview on the donwload screen

* refactor: rework meta and preview handling to be more general

* fix: missing meta

* fix: do not allow maybe or probably types

* fix: make the media check more strict

---------

Co-authored-by: Levente Kiss <levente.kiss@solarpunk.bzz>

src/react-app-env.d.ts

@@ -6,14 +6,16 @@ interface LatestBeeRelease {
 }
 
 interface SwarmMetadata {
-  size: number
+  size?: number
   name: string
   type?: string
 }
 
 interface Metadata extends SwarmMetadata {
   type: string
-  isWebsite: boolean
+  isWebsite?: boolean
+  isVideo?: boolean
+  isImage?: boolean
   count?: number
   hash?: string
 }