Remove "required" attribute for order descriptions (#4595)

* Made the description field on the part model optional

* Made the title field on the build model optional

* Made the description field on the order model optional

* Added migration files

InvenTree/part/migrations/0104_alter_part_description.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.2.18 on 2023-04-12 17:52
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('part', '0103_auto_20230317_0816'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='part',
+            name='description',
+            field=models.CharField(blank=True, help_text='Part description (optional)', max_length=250, verbose_name='Description'),
+        ),
+    ]

InvenTree/part/models.py

@@ -856,9 +856,9 @@ class Part(InvenTreeBarcodeMixin, MetadataMixin, MPTTModel):
     )
 
     description = models.CharField(
-        max_length=250, blank=False,
+        max_length=250, blank=True,
         verbose_name=_('Description'),
-        help_text=_('Part description')
+        help_text=_('Part description (optional)')
     )
 
     keywords = models.CharField(