Add Kazakh language option in UI

Author: int-y1

dmoj/settings.py

@@ -398,6 +398,7 @@
     ('hr', _('Croatian')),
     ('hu', _('Hungarian')),
     ('ja', _('Japanese')),
+    ('kk', _('Kazakh')),
     ('ko', _('Korean')),
     ('pt', _('Brazilian Portuguese')),
     ('ro', _('Romanian')),

judge/jinja2/markdown/__init__.py

@@ -154,9 +154,9 @@ def strip_paragraphs_tags(tree):
         parent = p.getparent()
         prev = p.getprevious()
         if prev is not None:
-            prev.tail = (prev.tail or '') + p.text
+            prev.tail = (prev.tail or '') + (p.text or '')
         else:
-            parent.text = (parent.text or '') + p.text
+            parent.text = (parent.text or '') + (p.text or '')
         parent.remove(p)