Provide some bonus options for the Internet Roadtrip minimap.
目前為
A script that adds some useful buttons to the Internet Roadtrip (https://neal.fun/internet-roadtrip/) minimap. Currently that is a button to centre our position, a Street View link for our current location, and a link to see Street View coverage around us. It also makes the map preserve the current zoom level when it re-centres automatically.
I also enlarge the map by default. This will be controllable in the settings one day.
