fix(e2e): fix broken "all calculator examples" test

refs #516

e2e/calc-all-examples.e2e-spec.ts

@@ -49,12 +49,14 @@ describe("ngHyd − example sessions −", async () => {
             }
 
             const examples = await element.all(by.css("#examples-list .load-example"));
+            await browser.sleep(200);
             if (examples.length > i) {
                 // click example #i
                 await examples[i].click();
-                await browser.sleep(50);
+                await browser.sleep(200);
 
                 const nbModules = await navbar.getCalculatorEntriesCount();
+                await browser.sleep(200);
                 for (let j = 0; j < nbModules; j++) {
                     // select module
                     await navbar.openNthCalculator(j);