Randomise button

[AvidGaming]

Add a randomise button on the search bar on the sequences page and a users profile. 

The button on the sequences page will take the user to any sequence at random. Likewise with the button on the users personal sequences page, it will load a random sequence that specific user has created.

Concept:

[tbyunomi]

Also fix the longest sequence search because its incorrect
It contains the sequences with the most notes instead.

[Real_KBGamingYT / KobesterGD]

Also fix the longest sequence search because its incorrect
It contains the sequences with the most notes instead.

Yes, fix the longest sequence tab. Since now it currently sorts the sequences by note count, we might as well just make a note count tab too.