feat:#47 updated primevue theme for sass

frontend/public/primevue-sass-theme/theme-base/components/misc/_skeleton.scss

@@ -0,0 +1,43 @@
+// core
+.p-skeleton {
+    overflow: hidden;
+}
+
+.p-skeleton::after {
+    content: '';
+    animation: p-skeleton-animation 1.2s infinite;
+    height: 100%;
+    left: 0;
+    position: absolute;
+    right: 0;
+    top: 0;
+    transform: translateX(-100%);
+    z-index: 1;
+}
+
+.p-skeleton.p-skeleton-circle {
+    border-radius: 50%;
+}
+
+.p-skeleton-none::after {
+    animation: none;
+}
+
+@keyframes p-skeleton-animation {
+    from {
+        transform: translateX(-100%);
+    }
+    to {
+        transform: translateX(100%);
+    }
+}
+
+// theme
+.p-skeleton {
+    background-color: $skeletonBg;
+    border-radius: $borderRadius;
+
+    &:after {
+        background: linear-gradient(90deg, rgba(255, 255, 255, 0), $skeletonAnimationBg, rgba(255, 255, 255, 0));
+    }
+}