refactor(pos): Optimize cart total section layout

- Reduced spacing around 'Итого:' line for more compact design
- Changed from h5 to strong tags for better space utilization
- Removed bottom margin from cart list
- Set symmetric padding (py-1) for total section
- More vertical space now available for cart items

myproject/pos/templates/pos/terminal.html

@@ -41,12 +41,12 @@
           </button>
         </div>
         <div class="card-body d-flex flex-column" style="min-height: 0;">
-          <div id="cartList" class="flex-grow-1 mb-3" style="overflow-y: auto;"></div>
+          <div id="cartList" class="flex-grow-1" style="overflow-y: auto;"></div>
           
           <div class="mt-auto">
-            <div class="d-flex justify-content-between align-items-center mb-3 pb-3 border-top pt-3">
-              <h5 class="mb-0">Итого:</h5>
-              <h5 class="mb-0 text-primary" id="cartTotal">0.00</h5>
+            <div class="d-flex justify-content-between align-items-center py-1 border-top">
+              <strong class="mb-0">Итого:</strong>
+              <strong class="mb-0 text-primary fs-5" id="cartTotal">0.00</strong>
             </div>
           </div>
         </div>