[refactor]: activate terminal after start command

[BlackHole1]

exec yarn run start in project root path, will open system terminal or iTerm2. but they(terminal / iTerm2) will not to the front (like z-index).

https://user-images.githubusercontent.com/8198408/134791718-c0984784-4dcd-4491-8baf-2a1bf55369e0.mp4

related documents: https://developer.apple.com/library/archive/documentation/AppleScript/Conceptual/AppleScriptLangGuide/reference/ASLR_cmds.html#//apple_ref/doc/uid/TP40000983-CH216-SW60

related code:

• https://github.com/netless-io/flat/blob/63b14ae5ac38a9a9822f1dbdba0da3f6a3d6aa83/scripts/launch/mac/launch_iTerm.scpt#L1-L10

• https://github.com/netless-io/flat/blob/63b14ae5ac38a9a9822f1dbdba0da3f6a3d6aa83/scripts/launch/mac/launch_terminal.scpt#L1-L5

[BlackHole1]

@l1shen Would you be interested in looking at this issue?

[l1shen]

@l1shen Would you be interested in looking at this issue?

Okay I'll take a look at it later