add delete dict operations

src-react/src/App.css

@@ -1,9 +1,24 @@
+a {
+  text-decoration: underline;
+  color: teal;
+}
+
+span {
+  display: inline-flex;
+  gap: 0.5em;
+  align-items: center;
+}
+
 @media (prefers-color-scheme: dark) {
   :root {
     color: #f6f6f6;
     background-color: #2f2f2f;
   }
 
+  a {
+    color: lightgray;
+  }
+
   a:hover {
     color: #24c8db;
   }