Update @fortawesome/fontawesome-free-solid requirement to 5.0.11

Updates the requirements on [@fortawesome/fontawesome-free-solid](https://github.com/FortAwesome/Font-Awesome) to permit the latest version.
- [Release notes](https://github.com/FortAwesome/Font-Awesome/releases)
- [Changelog](https://github.com/FortAwesome/Font-Awesome/blob/master/CHANGELOG.md)
- [Commits](https://github.com/FortAwesome/Font-Awesome/commits/5.0.11)

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -1,7 +1,7 @@
 {
   "dependencies": {
     "@fortawesome/fontawesome": "1.1.5",
-    "@fortawesome/fontawesome-free-solid": "5.0.10",
+    "@fortawesome/fontawesome-free-solid": "5.0.11",
     "@fortawesome/fontawesome-pro-regular": "5.0.10",
     "ol": "4.6.5"
   },