Update npm deps

package.json

@@ -11,26 +11,28 @@
         "postinstall": "opencollective-postinstall"
     },
     "devDependencies": {
-        "axios": "^0.18",
+        "axios": "^0.18.1",
         "bootstrap": ">=4.3.1",
         "cross-env": "^5.2.0",
         "jquery": "^3.4.1",
         "lodash": "^4.17.11",
         "popper.js": "^1.15.0",
+        "purify-css": "^1.2.5",
+        "purifycss-webpack": "^0.7.0",
         "resolve-url-loader": "^2.3.2",
-        "sass": "^1.19.0",
+        "sass": "^1.21.0",
         "sass-loader": "^7.1.0",
         "vue": "^2.6.10",
         "vue-template-compiler": "^2.6.10"
     },
     "dependencies": {
-        "bootstrap-vue": "^2.0.0-rc.19",
+        "bootstrap-vue": "^2.0.0-rc.22",
         "emoji-mart-vue": "^2.6.6",
         "filesize": "^3.6.1",
         "howler": "^2.1.2",
         "infinite-scroll": "^3.0.6",
         "laravel-echo": "^1.5.3",
-        "laravel-mix": "^4.0.15",
+        "laravel-mix": "^4.0.16",
         "node-sass": "^4.12.0",
         "opencollective": "^1.0.3",
         "opencollective-postinstall": "^2.0.2",