chore: update vuepress version to 1.1.0

Author: KuangPF

docs/.vuepress/override.styl

@@ -29,6 +29,7 @@
     margin: 0 auto;
 
 .page
+  padding-left: 0;
   .content:not(.custom) 
     max-width: 800px;
     margin-left: 0;

docs/.vuepress/style.styl renamed to docs/.vuepress/styles/palette.styl

@@ -75,7 +75,7 @@
     "uglifyjs-webpack-plugin": "^1.2.5",
     "url-loader": "^1.0.1",
     "vue-style-loader": "^4.1.0",
-    "vuepress": "^0.14.4",
+    "vuepress": "^1.1.0",
     "webpack": "^3.11.0",
     "webpack-bundle-analyzer": "^2.2.1",
     "webpack-dev-middleware-hard-disk": "^1.12.0",