chore: migrate to leven for command suggestion

[jamesgeorge007]

What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• Code style update
• Refactor
• Docs
• Underlying tools
• Other, please describe:

closes #5164

Does this PR introduce a breaking change? (check one)

• Yes
• No

Other information:
N/A

[haoqunjiang]

Try the two commands:
vue infi and vue iniy
Should return vue info and vue init respectively.

[jamesgeorge007]

Try the two commands:
vue infi and vue iniy
Should return vue info and vue init respectively.

    if (leven(cmd, unknownCommand) < 2) {

This would do that.

[haoqunjiang]

But it's not the best fix

[haoqunjiang]

The ideal algorithm is to find the closest command, regardless of the distance. (You can set a threshold to stop suggesting when even the closest command is too unrelated, though)