Refactor Core things, including Ecto handling, ActivityPub & Transmogrifier modules

* Data doesn't need anymore to be converted to ActivityStream format to
be saved (this was taken from Pleroma and not at all a good idea here)
* Everything saved when creating an event is inserted into PostgreSQL in
a single transaction

js/src/graphql/actor.ts

@@ -113,9 +113,8 @@ query LoggedUserParticipations($afterDateTime: DateTime, $beforeDateTime: DateTi
                   }
               },
               participantStats {
-                  approved,
-                  unapproved,
-                  participants
+                  notApproved
+                  participant
               },
               options {
                   maximumAttendeeCapacity
@@ -161,8 +160,8 @@ export const LOGGED_USER_DRAFTS = gql`
                     }
                 },
                 participantStats {
-                    approved,
-                    unapproved
+                    going,
+                    notApproved
                 },
                 options {
                     maximumAttendeeCapacity

js/src/graphql/event.ts

@@ -102,9 +102,9 @@ export const FETCH_EVENT = gql`
       #     name,
       # },
       participantStats {
-        approved,
-        unapproved,
-        participants
+        going,
+        notApproved,
+        participant
       },
       tags {
         ${tagsQuery}
@@ -259,9 +259,9 @@ export const CREATE_EVENT = gql`
         id,
       },
       participantStats {
-        approved,
-        unapproved,
-        participants
+        going,
+        notApproved,
+        participant
       },
       tags {
         ${tagsQuery}
@@ -344,9 +344,9 @@ export const EDIT_EVENT = gql`
         id,
       },
       participantStats {
-        approved,
-        unapproved,
-        participants
+        going,
+        notApproved,
+        participant
       },
       tags {
         ${tagsQuery}
@@ -410,10 +410,10 @@ export const PARTICIPANTS = gql`
         ${participantQuery}
       },
       participantStats {
-        approved,
-        unapproved,
+        going,
+        notApproved,
         rejected,
-        participants
+        participant
       }
     }
   }