Update homepage layout so that it is six columns instead of four

[brittanyrw]

If you would like to work on this Issue, comment below and wait for confirmation before starting to code.

Update the homepage layout so that there are six columns of emoji cards/books instead of five.

The new homepage should look like the image below:

This will involve increasing the max-width of the emoji container and the header container and updating the CSS grid to be six columns.

Also, you will need to update the column sizing for mobile as well.

[dewstend]

I would like to take this at @NovaHelm.

[brittanyrw]

Hi @dewstend what do you mean by 'take this at @NovaHelm'? Thanks!

[dewstend]

I would like to be assigned to this issue, and I work there :)

[brittanyrw]

Ah okay! Sounds good. I will assign this to you.

Also I updated it to say six columns instead of five. The website is currently is five columns already.