Add SPA post overlay

src/site/pug/post.pug

@@ -1,6 +1,4 @@
-include includes/display_structured
-
-- const numberFormat = new Intl.NumberFormat().format
+include includes/post
 
 doctype html
 html
@@ -12,18 +10,7 @@ html
 				=`Post from @${post.getBasicOwner().username}`
 			=` | Bibliogram`
 		include includes/head
+		script(type="module" src="/static/js/post_overlay.js")
 	body.post-page
-		main.post-page-divider
-			section.description-section
-				header.user-header
-					img(src=post.ownerPfpCacheP width=150 height=150 alt="").pfp
-					a.name(href=`/u/${post.getBasicOwner().username}`)= `${post.data.owner.full_name} (@${post.getBasicOwner().username})`
-				if post.getCaption()
-					p.structured-text.description
-						+display_structured(post.getStructuredCaption())
-			section.images-gallery
-				for entry in post.children
-					if entry.isVideo()
-						video(src=entry.getVideoUrlP() controls preload="auto" width=entry.data.dimensions.width height=entry.data.dimensions.height).sized-video
-					else
-						img(src=entry.getDisplayUrlP() alt=entry.getAlt() width=entry.data.dimensions.width height=entry.data.dimensions.height).sized-image
+		main
+			+post(post)