Moved Cards Container and Cards to grids

[gbonumore]

No description provided.

[Alexintosh]

@dimarconicola how do we feel about this?

[dimarconicola]

First of all, many thanks to Gab for putting his time and skills on this.
@Alexintosh in my opinion, we should not merge it for the following reasons:

• it has some problems that I've solved on another PR
• I'll have to learn CSS grid if I want to maintain this

Here's a screenshot from this PR #37

Here's a screenshot from my PR #42

[Alexintosh]

@gbonumore

[gbonumore]

Before having a look at it, let me know if you want to move to grids or it will be useless to fix this PR.