Add packages sections

[ericfennis]

I added a packages section, you can navigate via the packages link in the nav.
And worked on the first version of the docs section, but that need to be completed with a sidebar for links and some nice navigation. The markdown part is completely done.

Closes #336

Preview:

[moeenio]

I'd also put this stuff somewhere on the homepage. Like use it with : React / Vue / ...

[moeenio]

Or just a more prominent link to this page.

[ericfennis]

Yeah good idea, small section with all the supported frameworks.

[ericfennis]

Added small section to the homepage.

@locness3 Let me know what you think!

[moeenio]

Nice, maybe a bit smaller.

[ericfennis]

@locness3 Resized them!

[moeenio]

Looks good! Final suggestions :

• make the "available for" text link to the packages page
• add a line break between the "available for" text and the icons, on mobile but maybe also on desktoo

[ericfennis]

@locness3 got ya!

[ericfennis]

@locness3 I think this is it, can you check if it is right?

[moeenio]

Perfect.

[moeenio]

Oh, shouldn't the downloads/version badges on the packages page link to something?

[ericfennis]

I added them @locness3 tnx for noticing.
If you find more thing let me know, I will fix it in an other PR