fix: kiosk toggle sync, load more animation, remove nsis target

src/styles/dialogs.css

@@ -0,0 +1,52 @@
+* { margin: 0; padding: 0; box-sizing: border-box; }
+
+body {
+  background: rgba(0, 0, 0, 0);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  height: 100vh;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
+  transition: background 0.22s ease;
+}
+
+body.visible { background: rgba(0, 0, 0, 0.78); }
+body.hiding  { background: rgba(0, 0, 0, 0); }
+
+.card {
+  background: #1c1c1c;
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  border-radius: 12px;
+  padding: 32px 36px;
+  text-align: center;
+  min-width: 300px;
+  max-width: 420px;
+  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.8);
+  opacity: 0;
+  transform: scale(0.92) translateY(10px);
+  transition: opacity 0.22s ease, transform 0.22s cubic-bezier(0.34, 1.56, 0.64, 1);
+}
+
+body.visible .card { opacity: 1; transform: scale(1) translateY(0); }
+body.hiding  .card { opacity: 0; transform: scale(0.95) translateY(6px); }
+
+.title { font-size: 17px; font-weight: 700; color: #fff; margin-bottom: 10px; }
+.msg   { font-size: 13px; color: #999; line-height: 1.5; margin-bottom: 26px; }
+
+.btns { display: flex; gap: 10px; justify-content: center; }
+
+button {
+  padding: 10px 26px;
+  border: none;
+  border-radius: 7px;
+  font-size: 13px;
+  font-weight: 600;
+  cursor: pointer;
+  transition: opacity 0.15s, transform 0.1s;
+}
+button:hover  { opacity: 0.85; }
+button:active { transform: scale(0.97); }
+
+.btn-yes { background: #E50914; color: #fff; }
+.btn-no,
+.btn-ok  { background: rgba(255, 255, 255, 0.1); color: #ccc; }