fix: adjust table cell padding for improved layout consistency

Author: brylie

src/components/apps/BpmCalculator.svelte

@@ -146,7 +146,8 @@
       font-size: 0.85rem;
     }
 
-    .py-3 {
+    td,
+    th {
       padding-top: 0.5rem;
       padding-bottom: 0.5rem;
     }