Fix responsive event regression

[Indigo744]

Hello,

PR #343 introduces a regression: the window onResize event was no longer properly detached.

This PR fixes that (and also fixes some tests wrongly using globals).

[neveldo]

Hello @Indigo744,

As your PR contains a lot of changes, I will take the proper time to review it. I give you a feedback asap !

[Indigo744]

There are actually not that much 😄
The most important thing is for the onResize event.
For the tests, there are only a lot of "find & replace" because now I could use the this.$map instead of the selector.

[neveldo]

Hello @Indigo744 ,

You are right, I was a bit impressed by the length of the modification at first sight :) . Good fix, I forgot that the onResizeEvent() function was used to detach the event into the destroy() function ! Also, great update & clean of the unit tests !

(Don't you think that the beforeEach/afterEach functions could be factorized (maybe in const.js ?))

[Indigo744]

Right! I factorized it and resolve some remaining comma'first styles.

[neveldo]

Nice, it's ok for me !