Select correct lang in request, use timeout for request, fix sighandler panic

internal/holy/readConfig.go

@@ -3,6 +3,7 @@ package holy
 import (
 	"encoding/json"
 	"errors"
+	"fmt"
 	"os"
 
 	"tg-holy-bot/internal/log"
@@ -103,6 +104,13 @@ func ReadConfig() error {
 			return errors.New("Amount of user_agent strings in config must be exactly 31! Refusing to start") //nolint: staticcheck // Looks like golangci-lint ignoring settings about fucking ST1005 check. We want readable errors despite what wants author of linter or assholes from go dev team.
 		}
 
+		// Validate that all user agent strings are non-empty
+		for i, userAgent := range sampleConfig.UserAgents {
+			if userAgent == "" {
+				return fmt.Errorf("User agent string at index %d is empty! Refusing to start", i) //nolint: staticcheck // Looks like golangci-lint ignoring settings about fucking ST1005 check. We want readable errors despite what wants author of linter or assholes from go dev team.
+			}
+		}
+
 		log.Infof("Using %s as config file", location)
 
 		Config = sampleConfig