chore: fix regions for e2e specs

closes #1657

Author: Foxandxss

public/_includes/_util-fns.jade

@@ -234,7 +234,7 @@ script.
 
 //- Returns truthy iff path is example project relative.
 - var isProjRelDir = function(path) {
--   return !path.match(/\/(js|ts|dart)(-snippets)?\//) && !path.endsWith('e2e-spec.js');
+-   return !path.match(/\/(js|ts|dart)(-snippets)?\//) && !path.endsWith('e2e-spec.ts');
 -   // Last conjunct handles case for shared project e2e test file like
 -   // cb-component-communication/e2e-spec.js (is shared between ts & dart)
 -   // TODO: generalize: compare start with getExampleName(); which needs to be fixed.