Adding filtering capabilities for bills

[shreyaNagunuri]

Closes #1155
Hi, after reviewing the comments found on PR #1308 I wanted to build off of that code and add more filtering capabilities as well as clean up the UI so that it doesn't look congested. This was a new feature as requested in the issue #1155 so that we can filter the bill screen.

This is my first time contributing to open source as a new developer so please let me know if I can improve in any way! Hope this helps!

Closed Filter:

Open:

[almet]

Hi and thanks for taking the time to open a pull request. Now the game is to continue discussing this and implement the missing bits :-)

I believe we're lacking tests for this. It might be discouraging and useless, but it's actually a nice way to ensure other people won't break your code by mistake, and probably also a way to find out bugs you might have introduced.

Let me know when you have added this, and I'll review everything altogether. Cheers!