Update SelectListView.js

Update the line (13) as mentioned below to fix the issue. [OmniSharp#1]

Since we are modifying the file "atom-languageclient/index.js" to include the right folder ("dis/src" instead "src" in else). We need to modify this file to take the impact by adding a folder to this code at line 13.
Original:

atom.themes.requireStylesheet(require.resolve('../../../styles/select-list.less'));

Fix:

atom.themes.requireStylesheet(require.resolve('../../../../styles/select-list.less'));