Remove more backslashes.

Author: daexs

dist/plotly-with-meta.js

@@ -75556,7 +75556,7 @@ var Plotly = (() => {
           editType: "calc",
           description: [
             "Specifies the data URI of the image to be visualized.",
-            'The URI consists of "data:image/[<media subtype\\\\>][;base64\\\\],<data\\\\>"'
+            'The URI consists of "data:image/[<media subtype>][;base64],<data>"'
           ].join(" ")
         },
         z: {

test/plot-schema.json

@@ -47943,7 +47943,7 @@
      "valType": "number"
     },
     "source": {
-     "description": "Specifies the data URI of the image to be visualized. The URI consists of \"data:image/[<media subtype\\\\>][;base64\\\\],<data\\\\>\"",
+     "description": "Specifies the data URI of the image to be visualized. The URI consists of \"data:image/[<media subtype>][;base64],<data>\"",
      "editType": "calc",
      "valType": "string"
     },