make 404 text more fluid for various screen sizes

renderer/src/builtins/dashboard/styles/pages/_404.scss

@@ -30,7 +30,7 @@
     span {
       grid-row-start: 1;
       grid-column-start: 1;
-      font-size: 220px;
+      font-size: clamp(50px, 18vw, 220px);
       font-weight: 700;
       color: var(--text-brand);
       --vz-404-stack-height: calc(100% / var(--vz-404-stacks) - 1px);
@@ -51,11 +51,11 @@
     }
   }
   &-subheading {
-    font-size: 50px;
+    font-size: clamp(50px, 8vw, 100px);
     font-weight: 700;
     line-height: 1;
-    text-transform: uppercase;
     margin-top: -14px;
+    margin-bottom: 10px;
     padding: 10px;
   }
   &-description {