update packge dependency, upgrade hexo to 7.0.0

package.json

@@ -9,11 +9,11 @@
     "server": "hexo server"
   },
   "hexo": {
-    "version": "6.3.0"
+    "version": "7.0.0"
   },
   "dependencies": {
-    "@next-theme/plugins": "^8.18.0",
-    "hexo": "^6.3.0",
+    "@next-theme/plugins": "^8.19.1",
+    "hexo": "^7.0.0",
     "hexo-abbrlink": "^2.2.1",
     "hexo-deployer-git": "^4.0.0",
     "hexo-filter-github-emojis": "^3.0.5",
@@ -32,7 +32,7 @@
     "hexo-server": "^3.0.0",
     "hexo-tag-cloud": "2.1.*",
     "hexo-theme-landscape": "^1.0.0",
-    "hexo-theme-next": "^8.18.0",
+    "hexo-theme-next": "^8.19.1",
     "hexo-word-counter": "^0.1.0"
   }
-}
+}