lots of fixes

website/templates/tables/table.html

@@ -1,4 +1,4 @@
-<table class="table table-striped table-borderless shadow">
+<table class="table table-borderless shadow">
   {% if header %}<tr>
     <th colspan="{{ cols_number }}" class="thead-dark text-center">{{ header }}</th>
   </tr>{% endif %}

website/templatetags/boolean_icons.py

@@ -4,11 +4,11 @@ register = template.Library()
 
 @register.filter
 def as_icon(value):
-    icons = {True: "ok",
-            False: "remove",
-            None: "asterisk"
+    icons = {True: "circle-check",
+            False: "circle-x",
+            None: "question-mark"
             }
     if not value in icons:
         raise ValueError(value, 'is not a boolean or empty value !')
     else:
-        return format_html('<span class="glyphicon glyphicon-{}"></span>', icons[value])
+        return format_html('<span class="oi oi-{}" aria-hidden="true"></span>', icons[value])