MM-31063: Change constants to use CamelCase (#16608)

* MM-31063: Change constants to use CamelCase

* store package

* change allcaps to camel case (#16615)

* New tools.mod

Co-authored-by: Ibrahim Serdar Acikgoz <serdaracikgoz86@gmail.com>

app/config.go

@@ -26,7 +26,7 @@ import (
 )
 
 const (
-	ERROR_TERMS_OF_SERVICE_NO_ROWS_FOUND = "app.terms_of_service.get.no_rows.app_error"
+	ErrorTermsOfServiceNoRowsFound = "app.terms_of_service.get.no_rows.app_error"
 )
 
 func (s *Server) Config() *model.Config {