Add css to make FileFinder more usable.

src/atom/file-finder.coffee

@@ -5,6 +5,7 @@ stringScore = require 'stringscore'
 module.exports =
 class FileFinder extends Template
   content: ->
+    @link rel: 'stylesheet', href: "#{require.resolve('file-finder.css')}?#{(new Date).getTime()}"
     @div class: 'file-finder', =>
       @ol outlet: 'urlList'
       @input outlet: 'input', keyup: 'populateUrlList'

static/atom.css

@@ -34,7 +34,6 @@ body {
 .pane {
   display: -webkit-box;
   background-color: blue;
-  -webkit-box-flex: 1;
 }
 
 .ace_editor {

static/file-finder.css

@@ -0,0 +1,11 @@
+.file-finder {
+  display: -webkit-box;
+  -webkit-box-orient: vertical;
+  background-color: #444;
+  color: #eee;
+  width: 100%;
+}
+
+.file-finder input {
+  width: 100%;
+}