Please Remove astar-gas-station.herokuapp.com as it will be deleted

[niklabh]

Describe the bug
A clear and concise description of what the bug is.

Please Remove astar-gas-station.herokuapp.com as it will be deleted

talisman/apps/extension/src/ui/hooks/useTip.ts

Line 26 in 16b6b34

url: "https://astar-gas-station.herokuapp.com/api/astar/gasnow",

Please use official astar api

[chidg]

Closed by #1615