Edit function: format observations scatter plot

Replace if/else block with ternary operator

public/js/src_modules/chartScatterPlot.mjs

@@ -36,20 +36,18 @@ const formatSensorThingsApiResponseForScatterPlot = function (
   obsArrayOne,
   obsArrayTwo
 ) {
-  // When our observation arrays have DIFFERENT lengths
-  if (obsArrayOne.length !== obsArrayTwo.length) {
-    const [obsArrayOneFinal, obsArrayTwoFinal] =
-      checkForAndDeleteUniqueObservationsFromLargerArray(
-        obsArrayOne,
-        obsArrayTwo
-      );
-
-    return createCombinedObservationValues(obsArrayOneFinal, obsArrayTwoFinal);
-  }
-  // When our observation arrays already have SAME lengths
-  else {
-    return createCombinedObservationValues(obsArrayOne, obsArrayTwo);
-  }
+  // Check if our observation arrays have equal lengths,
+  // remove the unique observations, if necessary
+  const [obsArrayOneFinal, obsArrayTwoFinal] =
+    obsArrayOne.length !== obsArrayTwo.length
+      ? checkForAndDeleteUniqueObservationsFromLargerArray(
+          obsArrayOne,
+          obsArrayTwo
+        )
+      : [obsArrayOne, obsArrayTwo];
+
+  // Create the combined observations array
+  return createCombinedObservationValues(obsArrayOneFinal, obsArrayTwoFinal);
 };
 
 /**