feat(RUM): visit entry to use enterSource facet from distiller

tools/oversight/single.html

@@ -159,7 +159,7 @@ <h2>TTFB</h2>
           <link-facet facet="clicktarget">
             <legend>Click Target (URL)</legend>
           </link-facet>
-          <link-facet facet="entersource" thumbnail="false">
+          <link-facet facet="enter.source" thumbnail="false">
             <legend>External Referrer</legend>
             <dl>
               <dt>(direct)</dt>

tools/oversight/slicer.js

@@ -1,6 +1,7 @@
 // eslint-disable-next-line import/no-relative-packages
 import {
   DataChunks, utils, series, facets,
+// eslint-disable-next-line import/no-unresolved
 } from '@adobe/rum-distiller';
 import DataLoader from './loader.js';
 import { parseSearchParams, parseConversionSpec } from './utils.js';
@@ -18,6 +19,7 @@
   lcpSource,
   lcpTarget,
   acquisitionSource,
+  enterSource,
 } = facets;
 
 const {
@@ -242,7 +244,7 @@
       ));
 
       if (cp === 'loadresource') {
         console.log('adding histogram facet');
         // loadresource.target are not discrete values, but the number
         // of milliseconds it took to load the resource, so the best way
         // to present this is to create a histogram
@@ -261,6 +263,11 @@
       if (cp === 'acquisition') {
         dataChunks.addFacet('acquisition.source', acquisitionSource);
       }
+
+      // special handling for enter checkpoint
+      if (cp === 'enter') {
+        dataChunks.addFacet('enter.source', enterSource);
+      }
     });
 
   if (typeof herochart.updateDataFacets === 'function') {

tools/rum/slicer.js

@@ -1,6 +1,7 @@
 // eslint-disable-next-line import/no-relative-packages
 import {
   DataChunks, utils, series, facets,
+// eslint-disable-next-line import/no-unresolved
 } from '@adobe/rum-distiller';
 import DataLoader from './loader.js';
 import { parseSearchParams, parseConversionSpec } from './utils.js';