Microsoft changed the custom timezone identifier string AGAIN

[sdetweil]

the old string was
'tzone://Microsoft/Custom'
now its
'Customized Time Zone'

so, temp fix is to edit ical.,js and change

 if (tz === 'tzone://Microsoft/Custom' ){ 

to

if (tz === 'tzone://Microsoft/Custom' || tz==='Customized Time Zone') {

in two places

[sdetweil]

and some more..

DTSTART;TZID="(UTC+00:00) Dublin, Edinburgh, Lisbon, London":20230301T060000
DTEND;TZID="(UTC+00:00) Dublin, Edinburgh, Lisbon, London":20230301T120000

they are using the custom timezone definition

BEGIN:VTIMEZONE
TZID:(UTC+00:00) Dublin\, Edinburgh\, Lisbon\, London

[sdetweil]

I submitted this pull request which fixes both these problems..
#286