style(app): Remove newline from memory usage logging

This commit modifies the logging of memory and heap usage in the app.ts file. The redundant newline code `\n` at the end of the log message has been removed to enhance readability and neatness of the logs.

Signed-off-by: Mathis <yidhra@tuta.io>

src/app.ts

@@ -56,7 +56,7 @@ try {
 			process.memoryUsage().rss / 1_000_000
 		} Mio\n >> Memory heap usage: ${
 			process.memoryUsage().heapUsed / 1_000_000
-		} Mio\n\n`,
+		} Mio\n`,
 	);
 } catch (error) {
 	logger.error(`Server failed to start: ${error}`);