[Video] Download videos (#4886)

Co-authored-by: Samuel Newman <10959775+mozzius@users.noreply.github.com>

bskyweb/cmd/bskyweb/server.go

@@ -256,6 +256,9 @@ func serve(cctx *cli.Context) error {
 	e.GET("/profile/:handleOrDID/post/:rkey/liked-by", server.WebGeneric)
 	e.GET("/profile/:handleOrDID/post/:rkey/reposted-by", server.WebGeneric)
 
+	// video download
+	e.GET("/video-download", server.WebGeneric)
+
 	// starter packs
 	e.GET("/starter-pack/:handleOrDID/:rkey", server.WebStarterPack)
 	e.GET("/start/:handleOrDID/:rkey", server.WebStarterPack)

bskyweb/static/robots.txt

@@ -7,3 +7,4 @@
 # be ok.
 User-Agent: *
 Allow: /
+Disallow: /video-download