Can't see DateTime in docs and playground.

[DameNianch]

Describe the bug
Nothing is shown for DateTime on the previews of these pages.

• https://labelstud.io/tags/datetime
• https://labelstud.io/playground?config=%3CView%3E%0A%20%20%3CText%20name%3D%22txt%22%20value%3D%22%24text%22%20%2F%3E%0A%20%20%3CDateTime%20name%3D%22datetime%22%20toName%3D%22txt%22%20only%3D%22date%22%20%2F%3E%0A%3C%2FView%3E

Expected behavior
Something is shown.

Screenshots

Environment (please complete the following information):

• OS: mac
• Label Studio Version: I don't know.

Additional context
Console logs.

styles.css:1 
        
        
       GET https://labelstud.io/fonts/Hellix-Regular.woff2 net::ERR_ABORTED 404 (Not Found)
styles.css:1 
        
        
       GET https://labelstud.io/fonts/Hellix-SemiBold.woff2 net::ERR_ABORTED 404 (Not Found)
VM1360 jquery.min.js:2 Uncaught Error: No model registered for tag: datetime
Available models:
	audio
	audioplus
	hypertext
	polygonregion
	brushregion
	keypointregion
	rectangleregion
	ellipseregion
	image
	text
	channel
	timeseries
	label
	labels
	paragraphlabels
	textarearegion
	textarea
	choice
	choices
	rating
	paragraphs
	video
	brush
	brushlabels
	hypertextlabels
	keypoint
	keypointlabels
	list
	pairwise
	polygon
	polygonlabels
	ranker
	rectangle
	rectanglelabels
	shortcut
	taxonomy
	timeserieslabels
	ellipse
	ellipselabels
	relations
	relation
	dialog
	header
	table
	view
	style
	filter
	panel
	collapse
	timeseriesregion
    at e.value (VM1361 main.js:2:1294947)
    at Function.value (VM1361 main.js:2:1922206)
    at e.value (VM1361 main.js:2:2079490)
    at Object.validate (VM1361 main.js:2:2093077)
    at be (VM1361 main.js:2:94998)
    at r (VM1361 main.js:2:94692)
    at VM1361 main.js:2:33935
    at ke (VM1361 main.js:2:34178)
    at Object.r (VM1361 main.js:2:34354)
    at Object.o (VM1361 main.js:2:2090702)

label-studio/web/libs/editor/src/tags/control/DateTime.jsx

Line 431 in e76ac50

Registry.addTag("datetime", DateTimeModel, HtxDateTime);

it seems registered...