Added simple Selenium test for the happy path of successfully saving a word and a definition.
Added simple Selenium test for the happy path of successfully saving a word and a definition.

JuanEspinet/glossary,JuanEspinet/glossary,Auraelius/glossary,JuanEspinet/glossary,JuanEspinet/glossary,JuanEspinet/glossary,Auraelius/glossary,Auraelius/glossary,Auraelius/glossary,JuanEspinet/glossary,Auraelius/glossary,Auraelius/glossary