[BUG] : Image data is not deleted from tldraw file

[AE-SAY-WAY]

this is related to #146

shouldnt the image data be removed from the tldraw code as well, when the image is deleted?

			{
				"id": "asset:-1696089668",
				"type": "image",
				"typeName": "asset",
				"props": {
					"name": "tldrawFile",
					"src": "asset:obsidian.blockref.72086eda-a7d4-4d3d-8313-e272c83108d1",
					"w": 345,
					"h": 202,
					"fileSize": 9823,
					"mimeType": "image/png",
					"isAnimated": false
				},
				"meta": {}
			},