feat: emoji reactions for tasks and comments (#2196)

This PR adds reactions for tasks and comments, similar to what you can do on Gitea, GitHub, Slack and plenty of other tools.

Reviewed-on: https://kolaente.dev/vikunja/vikunja/pulls/2196
Co-authored-by: kolaente <k@knt.li>
Co-committed-by: kolaente <k@knt.li>

pkg/db/db.go

@@ -26,6 +26,8 @@ import (
 
 	"code.vikunja.io/api/pkg/config"
 	"code.vikunja.io/api/pkg/log"
+
+	"xorm.io/builder"
 	"xorm.io/xorm"
 	"xorm.io/xorm/names"
 	"xorm.io/xorm/schemas"
@@ -227,3 +229,12 @@ func NewSession() *xorm.Session {
 func Type() schemas.DBType {
 	return x.Dialect().URI().DBType
 }
+
+func GetDialect() string {
+	dialect := config.DatabaseType.GetString()
+	if dialect == "sqlite" {
+		dialect = builder.SQLITE
+	}
+
+	return dialect
+}