fix(frontend): standardize server time display

packages/common/src/index.ts

@@ -1,6 +1,7 @@
 export * from './rng.js';
 export * from './time/Clock.js';
 export * from './time/GameClock.js';
+export * from './time/ServerDateTime.js';
 export * from './util/BytesLike.js';
 export * from './util/convertBytesLikeToArrayBuffer.js';
 export * from './util/convertBytesLikeToUint8Array.js';