[Improvement] Cell: optimize left icon (#893)

package.json

@@ -52,13 +52,13 @@
   "license": "MIT",
   "dependencies": {
     "babel-runtime": "6.x",
-    "vue-lazyload": "^1.2.2"
+    "vue-lazyload": "^1.2.3"
   },
   "peerDependencies": {
     "vue": ">= 2.5.0"
   },
   "devDependencies": {
-    "autoprefixer": "^8.2.0",
+    "autoprefixer": "^8.3.0",
     "avoriaz": "2.0.0",
     "babel-cli": "^6.26.0",
     "babel-core": "^6.26.0",
@@ -71,7 +71,7 @@
     "codecov": "^3.0.0",
     "cross-env": "^5.1.4",
     "css-loader": "^0.28.11",
-    "dependency-tree": "^6.0.1",
+    "dependency-tree": "^6.1.0",
     "eslint": "^4.19.1",
     "eslint-plugin-vue": "^4.4.0",
     "extract-text-webpack-plugin": "^4.0.0-beta.0",
@@ -85,22 +85,22 @@
     "karma-coverage": "^1.1.1",
     "karma-mocha": "^1.3.0",
     "karma-phantomjs-launcher": "^1.0.4",
-    "karma-sinon-chai": "^1.3.2",
+    "karma-sinon-chai": "^1.3.4",
     "karma-spec-reporter": "^0.0.32",
     "karma-webpack": "2.0.13",
     "lint-staged": "^7.0.4",
-    "mocha": "^5.0.5",
+    "mocha": "^5.1.1",
     "postcss": "^6.0.21",
     "postcss-calc": "^6.0.0",
     "postcss-easy-import": "^3.0.0",
-    "postcss-loader": "^2.1.3",
+    "postcss-loader": "^2.1.4",
     "precss": "2.0.0",
     "progress-bar-webpack-plugin": "^1.11.0",
     "rimraf": "^2.5.4",
     "shelljs": "^0.8.1",
     "sinon": "^2.4.1",
     "sinon-chai": "^2.12.0",
-    "style-loader": "^0.20.3",
+    "style-loader": "^0.21.0",
     "uppercamelcase": "^3.0.0",
     "url-loader": "^1.0.1",
     "vant-doc": "1.0.4",
@@ -111,7 +111,7 @@
     "vue-style-loader": "^4.1.0",
     "vue-template-compiler": "2.5.16",
     "vue-template-es2015-compiler": "^1.6.0",
-    "webpack": "^4.5.0",
+    "webpack": "^4.6.0",
     "webpack-cli": "^2.0.14",
     "webpack-dev-server": "3.1.3",
     "webpack-merge": "^4.1.2"