update: coreui to 2.0.4

Author: mrholek

package.json

@@ -14,11 +14,11 @@
     "test:e2e": "vue-cli-service test:e2e"
   },
   "dependencies": {
-    "@coreui/coreui": "^2.0.3",
+    "@coreui/coreui": "^2.0.4",
     "@coreui/coreui-plugin-chartjs-custom-tooltips": "^1.2.0",
     "@coreui/icons": "0.2.0",
     "@coreui/vue": "^2.0.0-rc.0",
-    "bootstrap": "^4.1.1",
+    "bootstrap": "^4.1.2",
     "bootstrap-vue": "^2.0.0-rc.11",
     "chart.js": "^2.7.2",
     "core-js": "^2.5.7",

src/assets/scss/vendors/_variables.scss

@@ -1,7 +1,4 @@
 // Override Boostrap variables
 @import "../variables";
-@import "~@coreui/coreui/scss/bootstrap-variables";
 @import "~bootstrap/scss/mixins";
-@import "~bootstrap/scss/functions";
-@import "~bootstrap/scss/variables";
 @import "~@coreui/coreui/scss/variables";