Bug Report

• Package version(s): 2.10.3

Priorities and help requested (not applicable if asking question):

Are you willing to submit a PR to fix? No.

Requested priority: Normal.

Products/sites affected: Visual Studio Team Services - Package Management

Describe the issue:

Dropdown items having long strings tend to overflow instead of being truncated:
https://postimg.org/image/bv32vad8r/

Adding a maximum width and ellipsis would be great.