Larger Twitter popovers

[asmeurer]

Since the twitter and #sympy links popover, is it possible to make them fit all the way to the bottom of the page, so that they fit more tweets?

[ranveeraggarwal]

This should be easy to do, I guess.

1. Since there are two feeds, they can be aligned side by side, by defining another row and putting both of them inside separate col-md-6s.
2. A wider modal is needed. modal-lg should do it.
3. Some JS is to be written to extend the min-height of the modal to ~70% of the screen size.

@sumith1896 can you do this? I can help you out with the Bootstrap bits. Or maybe this can be a good first bug for a new contributor.

[asmeurer]

Twitter feeds no longer work because X removed that feature.