fix: update nuclide-* packages to 0.8.0

Author: aminya

package.json

@@ -32,8 +32,8 @@
   },
   "dependencies": {
     "atom-package-deps": "^6.0.0",
-    "@atom-ide-community/nuclide-commons-atom": "0.7.6",
-    "@atom-ide-community/nuclide-debugger-common": "0.7.6",
+    "@atom-ide-community/nuclide-commons-atom": "0.8.0",
+    "@atom-ide-community/nuclide-debugger-common": "0.8.0",
     "react": "16.6.3",
     "vscode-chrome-debug-core": "3.17.10",
     "vscode-debugadapter": "1.24.0",