Closes #11294: Markdown Preview (#11894)

* MarkdownWidget

* Change border and color of active markdown tab

* Fix template name typo

* Add render markdown endpoint

* Static assets for markdown widget

* widget style fix and unique ids based on name

* Replace SmallTextArea with SmallMarkdownWidget

* Clear innerHTML before swapping

* render markdown directly in template

* change render markdown view path

* remove small markdown widget

* Simplify rendering logic

* Use a form to clean input Markdown data

---------

Co-authored-by: Jeremy Stretch <jstretch@ns1.com>

netbox/virtualization/forms/bulk_edit.py

@@ -9,7 +9,7 @@ from netbox.forms import NetBoxModelBulkEditForm
 from tenancy.models import Tenant
 from utilities.forms import (
     add_blank_choice, BulkEditNullBooleanSelect, BulkRenameForm, CommentField, DynamicModelChoiceField,
-    DynamicModelMultipleChoiceField, SmallTextarea, StaticSelect
+    DynamicModelMultipleChoiceField, StaticSelect
 )
 from virtualization.choices import *
 from virtualization.models import *
@@ -90,7 +90,6 @@ class ClusterBulkEditForm(NetBoxModelBulkEditForm):
         required=False
     )
     comments = CommentField(
-        widget=SmallTextarea,
         label=_('Comments')
     )
 
@@ -163,7 +162,6 @@ class VirtualMachineBulkEditForm(NetBoxModelBulkEditForm):
         required=False
     )
     comments = CommentField(
-        widget=SmallTextarea,
         label=_('Comments')
     )