Refactor computeLink function and event listeners, fixes #30

[shaal]

I updated the Pages settings of my repo, you can test it here - https://shaal.github.io/ddev-gitpod-launcher/

Notice that with this PR every keystroke immediately updates the link.

Fixes

• https://github.com/ddev/ddev-gitpod-launcher/issues/30

[rfay]

Thanks so much for this. Does this mean that in the entire history of this ddev-gitpod-launcher it always failed and nobody ever reported the failure?

[rfay]

Gave you full privs on this repo.

[rfay]

But of course please see much simpler

• https://github.com/ddev/ddev-gitpod-launcher/pull/33

Also please provide manual testing instructions.

[shaal]

@rfay I added now testing steps in the description

[ultimike]

Thanks to you both for fixing this :)

-mike