add transliteration command (en <-> ru)

src/util/utils.ts

@@ -798,4 +798,10 @@ export async function imageToBase64(filePath: string): Promise<string> {
             resolve(dataUrl);
         });
     });
+}
+
+export function ifTrue(exp?: never): boolean {
+    if (!exp) return false;
+
+    return ["true", "t", "y", 1, "1"].includes(exp);
 }