fix(frontend): opened policy rule stays in view while its card grows, chevrons hold one column, switch and field sizes match the rest

frontend/src/lib/components/policy/PolicyCard.svelte

@@ -509,10 +509,10 @@
     flex-shrink: 0;
     align-items: center;
 
-    width: 2.125rem;
-    height: 1.25rem;
+    width: 2.25rem;
+    height: 1.375rem;
     padding: 0.125rem;
-    border-radius: 0.625rem;
+    border-radius: 0.6875rem;
 
     background-color: var(--color-borders-input);
 
@@ -524,8 +524,8 @@
   }
 
   .knob {
-    width: 1rem;
-    height: 1rem;
+    width: 1.125rem;
+    height: 1.125rem;
     border-radius: 50%;
 
     background-color: var(--color-white);