fix(mock): correct the annotations

Author: Coding-with-Adam

test/image/mocks/icicle_leaf-opacity-level.json

@@ -49,31 +49,31 @@
     "annotations": [
       {
         "showarrow": false,
-        "text": "opacity=<b>0.1</b>, level=<b>''</b>",
+        "text": "opacity=<b>0.1</b>, level=<b>'Enos'</b>",
         "x": 0.75,
         "xanchor": "left",
         "y": 1,
         "yanchor": "bottom"
       },
       {
         "showarrow": false,
-        "text": "opacity=<b>0.3</b>, level=<b>'Seth'</b>",
+        "text": "opacity=<b>0.3</b>, level=<b>'Enos'</b>",
         "x": 0.5,
         "xanchor": "left",
         "y": 1,
         "yanchor": "bottom"
       },
       {
         "showarrow": false,
-        "text": "opacity=<b>0.7</b>, level=<b>'Enos'</b>",
+        "text": "opacity=<b>0.7</b>, level=<b>'Seth'</b>",
         "x": 0.25,
         "xanchor": "left",
         "y": 1,
         "yanchor": "bottom"
       },
       {
         "showarrow": false,
-        "text": "opacity=<b>1</b>, level=<b>'Enos'</b>",
+        "text": "opacity=<b>1</b>, level=<b>''</b>",
         "x": 0.0,
         "xanchor": "left",
         "y": 1,