fix: undefined set selection for image modal (#384)

src/editors/sharedComponents/TinyMceWidget/__snapshots__/index.test.jsx.snap

@@ -52,7 +52,7 @@ exports[`TinyMceWidget snapshots ImageUploadModal is not rendered 1`] = `
         "placeholder": undefined,
         "selection": "hooks.selectedImage.selection",
         "setEditorRef": undefined,
-        "setSelection": undefined,
+        "setSelection": [MockFunction hooks.selectedImage.setSelection],
         "studioEndpointUrl": "sOmEoThERvaLue.cOm",
         "updateContent": [Function],
       }
@@ -129,7 +129,7 @@ exports[`TinyMceWidget snapshots SourcecodeModal is not rendered 1`] = `
         "placeholder": undefined,
         "selection": "hooks.selectedImage.selection",
         "setEditorRef": undefined,
-        "setSelection": undefined,
+        "setSelection": [MockFunction hooks.selectedImage.setSelection],
         "studioEndpointUrl": "sOmEoThERvaLue.cOm",
         "updateContent": [Function],
       }
@@ -217,7 +217,7 @@ exports[`TinyMceWidget snapshots renders as expected with default behavior 1`] =
         "placeholder": undefined,
         "selection": "hooks.selectedImage.selection",
         "setEditorRef": undefined,
-        "setSelection": undefined,
+        "setSelection": [MockFunction hooks.selectedImage.setSelection],
         "studioEndpointUrl": "sOmEoThERvaLue.cOm",
         "updateContent": [Function],
       }

src/editors/sharedComponents/TinyMceWidget/index.jsx

@@ -31,7 +31,6 @@ const editorConfigDefaultProps = {
   setEditorRef: undefined,
   placeholder: undefined,
   initializeEditor: undefined,
-  setSelection: undefined,
   updateContent: undefined,
   content: undefined,
   minHeight: undefined,
@@ -41,7 +40,6 @@ const editorConfigPropTypes = {
   setEditorRef: PropTypes.func,
   placeholder: PropTypes.any,
   initializeEditor: PropTypes.func,
-  setSelection: PropTypes.func,
   updateContent: PropTypes.func,
   content: PropTypes.any,
   minHeight: PropTypes.any,