feat: allow to configure implicit wait

[JonasPammer]

Relates to #134 (comment)

At least for my project, removing it completely results in no errors and 3 minutes (5.0.0-M2; compared to 2m20s without container) instead of 20.

I have yet to figure out a SSCCE that triggers the implicitWait

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Sorry for the potential spam of PRs, I want to figure out accepted ways of how to implement things first before tackling my big goal of being able to use GebConfig.groovy (custom environmentized client/driver config + custom remote image) again

[jdaugherty]

Thank you for the contribution. Let's wait for @matrei to get his thoughts on the config name.

[matrei]

camelCase will be great 👍. That is the standard In Grails.

[matrei]

Thanks @JonasPammer! Keep'em coming! I've been away for a couple of days but I'll be more active tomorrow again.

[matrei]

Thanks for the updates!

I have some more thoughts on this PR:

• There are two additional timeout values: pageLoadTimeout(default: 300s) and scriptTimeout(default: 30s). I think we should take this opportunity to add support for setting them as well. We could group them under grails.geb.webdriver.timeouts.*. We should also rename the variable and config property to implicitlyWait to align with the name in Webdriver.
• The default value in Webdriver for implicitlyWait is 0s. I do not know why testcontainers set it to 30s in their examples. I would like to try and set the default to 0s to resolve the issues the 30s default causes in Geb. As I understand it @JonasPammer, your testing shows that 0s works fine?

[JonasPammer]

i will first make commits that implement it as per #147 (review)

but to be honest, a more natural non-grails-plugin fix would be to allow custom DriverOptions to be passed, as:

An implicit wait value can be set either with the timeouts capability in the browser options, or with a driver method (as shown below). 1

but that will be its own PR when I get to it...

[JonasPammer]

good important and oblivious from my side (i saw the defaults too) catches

interesting getInteger method

will do

[matrei]

Thank you!