Add missing else in log level checking

I was getting confused for a good while on why this message showed up
even though I set the environment properly

packages/backend/src/env.ts

@@ -24,7 +24,9 @@ for (const key of Object.keys(envOption) as (keyof typeof envOption)[]) {
 			if (value.toLowerCase() in LOG_LEVELS) {
 				envOption.logLevel = LOG_LEVELS[value.toLowerCase()];
 			}
-			console.log('Unknown log level ' + JSON.stringify(value.toLowerCase()) + ', defaulting to "info"');
+			else {
+				console.log('Unknown log level ' + JSON.stringify(value.toLowerCase()) + ', defaulting to "info"');
+			}
 		} else {
 			envOption[key] = true;
 		}