fix: ellipse should use exponent (#2086)

* fix: prevent app from blowing up when snapshot modal is opened

* fix: use superscript tag to indicate ellipse is mm squared

* fix: update measurement item to allow us to specify html in MeasurementItem display text

extensions/measurement-tracking/src/panels/PanelMeasurementTableTracking/index.js

@@ -385,7 +385,7 @@ function _getDisplayText(
       const roundedArea = _round(area, 2);
 
       return [
-        `${roundedArea} ${unit}2 (S:${seriesNumber}, I:${instanceNumber})`,
+        `${roundedArea} ${unit}<sup>2</sup> (S:${seriesNumber}, I:${instanceNumber})`,
       ];
     }
     case types.POINT: {