JoinHorizontal should use top/bottom not left/right

[shaunco]

These JoinHorizontal calls should use lipgloss.Top rather than lipgloss.Left:

• https://github.com/charmbracelet/bubbles/blob/64a67d167062e075d80a132afc0851fd1b2c6b89/table/table.go#L421
• https://github.com/charmbracelet/bubbles/blob/64a67d167062e075d80a132afc0851fd1b2c6b89/table/table.go#L445

[aditipatelpro]

@shaunco , I would love to contribute to this project and this issue seems interesting to start with. I would love to start working on this if you are open for contributions.

[shaunco]

@aditipatelpro I am just a user of charmbracelet, not a maintainer but it appears that the project accepts plenty of outside PRs.

[aditipatelpro]

Thank you @shaunco.

@muesli @meowgorithm @aymanbagabas, I am interested in contributing to this project and would love to start working on it if you are open to it.

[bashbunni]

@aditipatelpro if you would like to contribute a fix for this, please do! We appreciate all of the contributions we get :)