Use consistent capitals for admin column descriptions

judge/admin/contest.py

@@ -360,10 +360,10 @@ def recalculate_results(self, request, queryset):
                                             '%d participations recalculated.',
                                             count) % count)
 
-    @admin.display(description=_('username'), ordering='user__user__username')
+    @admin.display(description=_('Username'), ordering='user__user__username')
     def username(self, obj):
         return obj.user.username
 
-    @admin.display(description=_('virtual'), ordering='virtual')
+    @admin.display(description=_('Virtual'), ordering='virtual')
     def show_virtual(self, obj):
         return obj.virtual or '-'

judge/admin/interface.py

@@ -25,7 +25,7 @@ def __init__(self, *args, **kwargs):
         super(NavigationBarAdmin, self).__init__(*args, **kwargs)
         self.__save_model_calls = 0
 
-    @admin.display(description=_('link path'))
+    @admin.display(description=_('Link path'))
     def linked_path(self, obj):
         return format_html('<a href="{0}" target="_blank">{0}</a>', obj.path)
 
@@ -151,7 +151,7 @@ def has_change_permission(self, request, obj=None):
     def has_delete_permission(self, request, obj=None):
         return False
 
-    @admin.display(description=_('object'), ordering='object_repr')
+    @admin.display(description=_('Object'), ordering='object_repr')
     def object_link(self, obj):
         if obj.is_deletion():
             link = obj.object_repr

judge/admin/organization.py

@@ -107,6 +107,6 @@ class OrganizationRequestAdmin(admin.ModelAdmin):
     list_display = ('username', 'organization', 'state', 'time')
     readonly_fields = ('user', 'organization', 'request_class')
 
-    @admin.display(description=_('username'), ordering='user__user__username')
+    @admin.display(description=_('Username'), ordering='user__user__username')
     def username(self, obj):
         return obj.user.user.username

judge/admin/problem.py

@@ -265,7 +265,7 @@ def has_change_permission(self, request, obj=None):
     def lookup_allowed(self, key, value):
         return super().lookup_allowed(key, value) or key in ('problem__code',)
 
-    @admin.display(description=_('problem'), ordering='problem__name')
+    @admin.display(description=_('Problem'), ordering='problem__name')
     def linked_problem(self, obj):
         link = reverse('problem_detail', args=[obj.problem.code])
         return format_html('<a href="{0}">{1}</a>', link, obj.problem.name)

judge/admin/profile.py

@@ -104,7 +104,7 @@ def email(self, obj):
     def timezone_full(self, obj):
         return obj.timezone
 
-    @admin.display(description=_('date joined'), ordering='user__date_joined')
+    @admin.display(description=_('Date joined'), ordering='user__date_joined')
     def date_joined(self, obj):
         return obj.user.date_joined