Add sortbysize button on mega.nz
### USE CASE:
- Script will sort files by size on clicking of button sortbysize.
### Sort By other parameters:
- To sort by **type**, change classname in line 25 to **type**.
- To sort by **name**, change classname in line 25 to **name**.
- To sort by **date added**, change classname in line 25 to **date**.
**Note:** In future, if domain name is not the same. Modify @match link.
