Search function/ filter for the inbox

[gensou_alice]

Title
Search function/ filter for the inbox

Short, concise description of the idea
Include a search box or a filter on the inbox so that you can search for a particular keyword, or a particular user.

Full description of the idea
I have having to dig through hundreds of pages in my inbox trying to find a comment or a message I was looking for. It would be so much easier if I could just search for the user that sent me the message, or posted the comment. There's already the user filter for communities, I think that it would be a good idea to implement at least a filter into the inbox.
An ordered list of benefits

• Easy to find messages or comments by user or keyword
  

An ordered list of problems/issues involved

• I cannot think of any drawbacks to this suggestion