Add table sort feature

[stphnnnn]

Adds a feature I've wanted to have a for a while, a way to sort the modules table by size of the modules.

This adds two buttons to the modules table component to allow switching table sort mode between 'Name' (alphabetical) and 'Size'.

This also tidies up the table code a little bit by checking which data should be shown before declaring the JSX.

[zouhir]

this is great! thanks!