Add LineItem CSV import and fix Unit API

resources/views/invoice.blade.php

@@ -54,9 +54,9 @@
 
     <address>
         <div class="sender">
-            {{ $companyname }},
+            {{ $companyName }},
             {{ $companyAddress['lineOne'] }},
-            @if($companyAddress['lineOne'])
+            @if($companyAddress['lineTwo'])
             {{ $companyAddress['lineTwo'] }}
             @endif
             {{ $companyAddress['postalCode'] }}
@@ -170,7 +170,7 @@
                         {{ $item['description'] }}
                     </td>
                     <td>@toCommaFloat($item['quantity'])</td>
-                    <td>{{ $item['unit'] }}</td>
+                    <td>{{ $item['unit']['name'] }}</td>
                     <td>@toCurrency($item['price'])</td>
                     <td>@toCurrency($item['quantity'] * $item['price'])</td>
                 </tr>