update matched table styles, add loading animation for some blocks

src/app/styles/pages-styles.scss

@@ -686,7 +686,7 @@
 
 				&:focus {
 					outline-offset: 2px;
-					outline: 2px solid #0000;
+					outline: 2px solid v.$black;
 					box-shadow: 0 0 0 2px #6365f187;
 				}
 			}
@@ -1775,6 +1775,7 @@
 	display: flex;
 	flex-direction: column;
 	gap: 16px;
+	position: relative;
 
 	.file-item {
 		display: flex;