Fix protractor.

[mshima]

#15286 added the application name to angular home page at:

generator-jhipster/generators/client/templates/angular/src/main/webapp/app/home/home.component.html.ejs

Line 25 in 5fd3952

<h1 class="display-4"><span <%= jhiPrefix %>Translate="home.title">Welcome, <%= backendName %> Hipster!</span> (<%= humanizedBaseName %>)</h1>

This can be helpful to identify a webapp now that microfrontends have one webapp each.
Adjust protractor test according to this change.

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