add wait for pickup overlay

Signed-off-by: Timo K <toger5@hotmail.de>

src/room/WaitingForJoin.module.css

@@ -0,0 +1,51 @@
+.overlay {
+  position: absolute;
+  inset: 0;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  pointer-events: none;
+  background: var(--cpd-color-bg-canvas-default);
+  opacity: 0.94;
+}
+
+.content {
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+  gap: 16px;
+}
+
+.pulse {
+  position: relative;
+  height: 90px;
+}
+
+.pulse::before {
+  content: "";
+  position: absolute;
+  inset: -12px;
+  border-radius: 9999px;
+  border: 2px solid rgba(255, 255, 255, 0.6);
+  animation: pulse 1.6s ease-out infinite;
+}
+
+@keyframes pulse {
+  0% {
+    transform: scale(0.95);
+    opacity: 0.7;
+  }
+  70% {
+    transform: scale(1.15);
+    opacity: 0.15;
+  }
+  100% {
+    transform: scale(1.2);
+    opacity: 0;
+  }
+}
+
+.label {
+  color: white;
+  text-shadow: 0 1px 2px rgba(0, 0, 0, 0.4);
+}