Settings: Check alert tones behaviour

[rozd]

Original report by MaxR (Bitbucket: rozd, GitHub: rozd).

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Hahahahahaha our alert tones are out of control that was hilarious

[8:43]
Temperature alert tone plays multiple times at the very start of a session (should not play at all at the start of a session.) Then, when you reach the desired temperature, the alert tone plays on repeat until the device is turned off (tone should only play once)