Calculator keystroke fixes

src/components/CalculatorPopover.tsx

@@ -114,6 +114,14 @@ const CalculatorPopover: Component = () => {
     const handleKeyDown = (e: KeyboardEvent) => {
         if (!isOpen()) return;
 
+        // Don't intercept if an input is focused
+        const activeElement = document.activeElement;
+        const isInputFocused = activeElement instanceof HTMLInputElement || 
+                               activeElement instanceof HTMLTextAreaElement ||
+                               activeElement?.hasAttribute('contenteditable');
+        
+        if (isInputFocused) return;
+
         if (e.key >= '0' && e.key <= '9') {
             handleNumberClick(e.key);
         } else if (e.key === '.') {