Database performance

* optimizes the db fetching for all index views and detail views
* introduces usage of managers.py in all necessary apps for wrapping basic fetch settings
* moves comment.html to comment_card.html under /konova/templates/konova/
* adds/updates translations
* fixes document typos
* drops comment rendering in public reports
* opens public reports in new tabs if button is clicked from the detail view

ema/tables.py

@@ -49,7 +49,7 @@ class EmaTable(BaseTable):
     lm = tables.Column(
         verbose_name=_("Last edit"),
         orderable=True,
-        accessor="created__timestamp",
+        accessor="modified__timestamp",
     )
 
     class Meta(BaseTable.Meta):
@@ -122,7 +122,7 @@ class EmaTable(BaseTable):
         """
         html = ""
         has_access = value.filter(
-            username=self.user.username
+            id=self.user.id
         ).exists()
 
         html += self.render_icn(