Ensure that the value 'off' is properly read as a false boolean. #119
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Currently, if a site has the default status of 'off' (disabled), the status in the sites list view shows 'enabled' as the status. This is due to checking if the non-empty string whose value is set to 'off' is falsey, which of course it is not. By running the string through
filter_var()and using theFILTER_VALIDATE_BOOLEANflag, we are able to ensure that strings are properly converted into booleans if the values are 'on' or 'off'.