Add dashboard and RFV skeleton loaders

src/index.css

@@ -75,6 +75,33 @@
 }
 
 @layer components {
+  .skeleton {
+    position: relative;
+    overflow: hidden;
+    border-radius: 0.75rem;
+    background: color-mix(in srgb, var(--color-dark-input) 82%, var(--color-dark-text) 18%);
+  }
+
+  .skeleton::after {
+    content: "";
+    position: absolute;
+    inset: 0;
+    transform: translateX(-100%);
+    background: linear-gradient(
+      90deg,
+      transparent,
+      color-mix(in srgb, var(--color-dark-text) 14%, transparent),
+      transparent
+    );
+    animation: skeleton-shimmer 1.45s ease-in-out infinite;
+  }
+
+  @keyframes skeleton-shimmer {
+    100% {
+      transform: translateX(100%);
+    }
+  }
+
   .app-shell {
     background:
       linear-gradient(180deg, rgba(255, 255, 255, 0.018), rgba(255, 255, 255, 0) 24rem),