update templates structures

inventory/templatetags/custom_filters.py

@@ -13,7 +13,7 @@ register = template.Library()
 def percentage(value):
     if value is not None:
         return '{0:,.2f}%'.format(value * 100)
-
+    return None
 
 @register.filter
 def get_item(dictionary, key):

templates/items/service/service_create.html

@@ -4,7 +4,7 @@
 {% load i18n %}
 {% block title %}{{ _("Service") }}{% endblock title %}
 {% block content %}
-    <div class="row">
+    <div class="container">
         <div class="row justify-content-center">
             <div class="col-md-8">
                 <div class="card bg-body">

templates/ledger/bank_accounts/bank_account_form.html

@@ -4,9 +4,11 @@
 {% block title %}{% trans "bank account" %}{% endblock title %}
 
 {% block content %}
-    <div class="row my-5">
+<div class="container">
+    <div class="row justify-content-center">
+        <div class="col-8">
     <!-- Display Form Errors -->
-        <div class="card shadow rounded">
+        <div class="card shadow rounded bg-body">
             <div class="card-header">
                 <p class="mb-0">
                     {% if customer.created %}
@@ -35,5 +37,7 @@
                 </form>
             </div>
         </div>
+        </div>
     </div>
+</div>
 {% endblock %}