fixed most init errors in channels/store/storetest dir | 24 files edited (#26522)

Co-authored-by: Ben Schumacher <ben.schumacher@mattermost.com>
Co-authored-by: Agniva De Sarker <agnivade@yahoo.co.in>

server/channels/app/post.go

@@ -2151,7 +2151,7 @@ func (a *App) SetPostReminder(rctx request.CTX, postID, userID string, targetTim
 		CreateAt:  model.GetMillis(),
 		UserId:    userID,
 		RootId:    postID,
-		ChannelId: metadata.ChannelId,
+		ChannelId: metadata.ChannelID,
 		// It's okay to keep this non-translated. This is just a fallback.
 		// The webapp will parse the timestamp and show that in user's local timezone.
 		Message: fmt.Sprintf("You will be reminded about %s by @%s at %s", permalink, metadata.Username, parsedTime),