Makes more clear the is_enable function in themes (#11631)

* Makes more clear the is_enable function in themes

* Update models.py

* Update 0015_alter_geonodethemecustomization_is_enabled.py

* fix format

geonode/themes/migrations/0015_alter_geonodethemecustomization_is_enabled.py

+# Generated by Django 3.2.21 on 2023-10-23 10:20
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('geonode_themes', '0014_auto_20220214_0910'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='geonodethemecustomization',
+            name='is_enabled',
+            field=models.BooleanField(default=False, help_text='Set this theme as the current global theme for GeoNode. This will disable the current theme (if any)'),
+        ),
+    ]

geonode/themes/models.py

@@ -54,7 +54,8 @@ class GeoNodeThemeCustomization(models.Model):
     name = models.CharField(max_length=100, help_text="This will not appear anywhere.")
     description = models.TextField(null=True, blank=True, help_text="This will not appear anywhere.")
     is_enabled = models.BooleanField(
-        default=False, help_text="Enabling this theme will disable the current enabled theme (if any)"
+        default=False,
+        help_text="Set this theme as the current global theme for GeoNode. This will disable the current theme (if any)",
     )
     logo = models.ImageField(upload_to="img/%Y/%m", null=True, blank=True)
     extra_css = models.TextField(