Refactor CPU statistics formatting for improved precision

- Updated JavaScript to ensure CPU total, free, and usage values are formatted as numbers with one decimal place for consistency.
- Modified HTML template to apply float formatting to the displayed free CPU value, enhancing clarity in metrics presentation.

templates/dashboard/_stats_cards.html

@@ -39,7 +39,7 @@
                 <progress class="progress progress-primary w-full" value="{{ pcpu.used_percentage }}" max="100"></progress>
                 <div class="flex justify-between text-xs">
                     <span class="text-base-content/60">Free</span>
-                    <span class="font-medium">{{ pcpu.free }} CPU</span>
+                    <span class="font-medium">{{ pcpu.free|floatformat:1 }} CPU</span>
                 </div>
             </div>
             {% endif %}