Timeline improvements (#41)

Tidying up.
Parent/child statuses now display correctly in status/id/context.

internal/typeutils/internal.go

@@ -43,10 +43,11 @@ func (c *converter) StatusToBoost(s *gtsmodel.Status, boostingAccount *gtsmodel.
 		URL: boostWrapperStatusURL,
 
 		// the boosted status is not created now, but the boost certainly is
-		CreatedAt: time.Now(),
-		UpdatedAt: time.Now(),
-		Local:     local,
-		AccountID: boostingAccount.ID,
+		CreatedAt:  time.Now(),
+		UpdatedAt:  time.Now(),
+		Local:      local,
+		AccountID:  boostingAccount.ID,
+		AccountURI: boostingAccount.URI,
 
 		// replies can be boosted, but boosts are never replies
 		InReplyToID:        "",