Update dependency file-saver to v2

Author: renovate-bot

package.json

@@ -29,7 +29,7 @@
     "deepmerge": "^2.0.1",
     "dot-object": "^1.7.0",
     "fabric": "^2.2.4",
-    "file-saver": "^1.3.8",
+    "file-saver": "2.0.5",
     "hammerjs": "^2.0.8",
     "ngx-color-picker": "^4.5.0",
     "perfect-scrollbar": "^1.3.0",
@@ -49,7 +49,7 @@
     "@types/deepmerge": "^2.1.0",
     "@types/dot-object": "^1.5.0",
     "@types/fabric": "file:./fabric-types",
-    "@types/file-saver": "^1.3.0",
+    "@types/file-saver": "2.0.5",
     "@types/hammerjs": "^2.0.35",
     "@types/node": "~6.0.60",
     "@types/svg4everybody": "^2.1.0",