chore(manifest): add exception and upgrade version

manifest.json

@@ -1,7 +1,7 @@
 {
   "manifest_version": 2,
   "name": "Cookie Dialog Monster",
-  "version": "5.0.2",
+  "version": "5.1.0",
   "default_locale": "en",
   "description": "__MSG_appDesc__",
   "icons": {
@@ -20,6 +20,7 @@
   "content_scripts": [
     {
       "all_frames": true,
+      "exclude_matches": ["*://*.gfycat.com/*"],
       "js": ["scripts/content.js"],
       "matches": ["http://*/*", "https://*/*"],
       "run_at": "document_start"