Update GitLab UI to latest version

package.json

@@ -29,7 +29,7 @@
     "@babel/preset-env": "^7.3.1",
     "@gitlab/csslab": "^1.8.0",
     "@gitlab/svgs": "^1.51.0",
-    "@gitlab/ui": "^2.0.2",
+    "@gitlab/ui": "^2.0.4",
     "apollo-boost": "^0.1.20",
     "apollo-client": "^2.4.5",
     "autosize": "^4.0.0",

yarn.lock

@@ -658,10 +658,10 @@
   resolved "https://registry.yarnpkg.com/@gitlab/svgs/-/svgs-1.51.0.tgz#1b608f68dfb74284401b1cbdb823440f6e8b0091"
   integrity sha512-B1Wdhfy5ZClkHuaaCUUZyOBF8CFxxHqxGGhveRekOowtlMExa3tx+YkqNa5XPsEVMF6Aqnh8evQmmN4b+zrHVQ==
-"@gitlab/ui@^2.0.2":
-  version "2.0.2"
-  resolved "https://registry.yarnpkg.com/@gitlab/ui/-/ui-2.0.2.tgz#611571c931181fb783f57f712e1c2388059b301b"
-  integrity sha512-rUWVhWmM9EkwIEruYJEjizrQKe7TzNyKArwWY/nfEL4HptDtwbe+xHfR8IJHbpql3oI87cTO3BheMxYF6b2Ebg==
+"@gitlab/ui@^2.0.4":
+  version "2.0.4"
+  resolved "https://registry.yarnpkg.com/@gitlab/ui/-/ui-2.0.4.tgz#ba86f6e5868ef7bc7f504cef9ca504c2d2f6bffd"
+  integrity sha512-dJ+KKpeqIAPYZtYZeciXhC/whNiGPVRjp5IgjQRddh3zsreqmfwQq58nSH7HepAAIepaqTe0UFuzBgrSWvVM6w==
   dependencies:
     babel-standalone "^6.26.0"
     bootstrap-vue "^2.0.0-rc.11"