feat:time to end of first shift is hidden

src/index.css

@@ -97,6 +97,10 @@ H1 {
   color: #b9c8d6;
 }
 
+.hidden {
+  display: none;
+}
+
 .time-block.break-current {
   border: 2px solid #d4a017;
   color: #d4a017;

src/index.js

@@ -281,9 +281,14 @@ function updateNextBreak() {
 
   const shift1Ms = getShift1EndMs(now);
   const timeUntilShift1End = Math.max(0, shift1Ms - now.getTime());
-  shift1EndEl.textContent =
-    "До конца смены 1 (" + getShift1EndForToday(now) + ") · " +
-    formatDuration(timeUntilShift1End);
+  if (timeUntilShift1End === 0) {
+    shift1EndEl.classList.add("hidden");
+  } else {
+    shift1EndEl.classList.remove("hidden");
+    shift1EndEl.textContent =
+      "До конца смены 1 (" + getShift1EndForToday(now) + ") · " +
+      formatDuration(timeUntilShift1End);
+  }
 
   scheduleNextBreakTick();
 }