Fix position of map on first opening
Fix position of map on first opening

Invlidate size after setting the map centre.

Bug: T133972
Change-Id: I8780de05762f43d51a84ccfd66a9531397d60aa6

wikimedia/mediawiki-extensions-Kartographer,wikimedia/mediawiki-extensions-Kartographer,wikimedia/mediawiki-extensions-Kartographer