Work on AP-ing media and extending likes and whatnot

Also added two fields to roles model, but haven't ran the various
generators yet

storage-new/models/RolesDefaults.go

@@ -42,6 +42,9 @@ var DefaultUserRole = Role{
 		uint32(math.MaxUint32),
 	), // Set this to max, even if not used due to *HasMentionCountLimit == false
 
+	MaxIndividualFileSize: other.IntoPointer(uint64(10 << 20)),  // 10 MB
+	MaxTotalFileSize:      other.IntoPointer(uint64(500 << 20)), // 500 MB
+
 	AutoNsfwMedia:                  other.IntoPointer(false),
 	AutoCwPosts:                    other.IntoPointer(false),
 	AutoCwPostsText:                nil,