api/reddit: add support for mobile links & bunch of other links (#1098)

* api/reddit: extract params from a mobile share link

* api/reddit: add support for a bunch of links & update the api endpoint

also fixed "undefined" in a filename when downloading a user post

* api/service-patterns: fix reddit id pattern

api/src/processing/match.js

@@ -120,9 +120,8 @@ export default async function({ host, patternMatch, params }) {
 
             case "reddit":
                 r = await reddit({
-                    sub: patternMatch.sub,
-                    id: patternMatch.id,
-                    user: patternMatch.user
+                    ...patternMatch,
+                    dispatcher,
                 });
                 break;