Reloading the page on browser will show all conversations's temperature set to 0 changed to 1

[mauga]

When conversation temperature is 0, tests in utils/app/clean.ts fails and reset to 1.
Reloading the page on browser will show all conversations's temperature set to 0 changed to 1.

Into file utils/app/clean.ts at lines :
31 if (!updatedConversation.temperature)
and
77 if (!conversation.temperature)
these tests fails when temperature is 0, then temperature is set to DEFAULT_TEMPERATURE (1)

I changed these lines to:
31 if (typeof updatedConversation.temperature === 'undefined')
and
77 if (typeof conversation.temperature === 'undefined')

Now chatbot behave correctly when you reenter the page.