style: fix code formatting and missing whitespaces

Author: fluffur

examples/middleware/main.go

@@ -7,10 +7,11 @@ import (
 	"strconv"
 	"time"
 
-	"github.com/gotd/botapi"
-	"github.com/gotd/botapi/storage"
 	"github.com/gotd/log/logzap"
 	"go.uber.org/zap"
+
+	"github.com/gotd/botapi"
+	"github.com/gotd/botapi/storage"
 )
 
 func main() {
@@ -51,7 +52,8 @@ func main() {
 	bot.Use(botapi.Recover(), botapi.Timeout(time.Minute), botapi.Logging())
 
 	log.Info("Starting bot")
+
 	if err := bot.Run(ctx); err != nil {
-		log.Fatal("Run", zap.Error(err))
+		log.Error("Run", zap.Error(err))
 	}
 }

handler.go

@@ -92,6 +92,7 @@ func (b *Bot) route(ctx context.Context, u *Update) {
 	if b.self != nil {
 		u.botUsername = b.self.Username
 	}
+
 	c := &Context{Context: ctx, Bot: b, Update: u}
 
 	b.router.mu.RLock()
@@ -117,8 +118,10 @@ func (b *Bot) route(ctx context.Context, u *Update) {
 
 			return h(c)
 		}
+
 		return nil
 	}
+
 	for i := len(preMws) - 1; i >= 0; i-- {
 		routingHandler = preMws[i](routingHandler)
 	}