Check 1 position fix; remove comma from next check number display

- Move check slot 0 up 0.25" to match physical stock alignment;
  slots 1 and 2 are unaffected
- Remove toLocaleString() from next check number header display
  so no comma appears in the thousands place

public/js/app.js

@@ -87,7 +87,7 @@ function renderHeader() {
   const a = state.account;
   if (!a) return;
   document.getElementById('company-name').textContent = a.company1 || 'ezcheck';
-  document.getElementById('current-check-no').textContent = (a.current_check_no + 1).toLocaleString();
+  document.getElementById('current-check-no').textContent = a.current_check_no + 1;
 }
 
 function renderTable() {