various fixes

src/project/models.py

@@ -285,8 +285,8 @@ class Partner(CMSPlugin):
     url = models.URLField(verbose_name='URL', blank=True, null=True)
 
     class Meta(CMSPlugin.Meta):
-        verbose_name = 'Slider Item'
-        verbose_name_plural = 'Slider Items'
+        verbose_name = 'Partner'
+        verbose_name_plural = 'Partner'
 
     def __str__(self):
         return self.name