[WIP] bootstrap-vue upgrade (#9178)

* update bootstrap-vue to 1.0.0-beta.9 - remove all individual bootstrap components and use BootstrapVue into Vue

* change modal action names from show::modal to bv::show::modal

* check if drops are undefined

* fix modal widths - sellModal now using input instead of dropbox

* upgrade to bootstrap 4.0beta

* include package-lock changes

* fix app menu dropdown position

* upgrade bootstrap to beta2 (was missing grid offset and other fixes) - refix header menu position

* fix tags popup (auto width to max not working) - fix filter panel width (adding width: 100% works until max-width)

* show hide logo on different screensize (new css breakpoints - http://getbootstrap.com/docs/4.0/utilities/display/ )

* fix package-lock?

* fix active button style / app header toggle button

* fix package-lock !

* update package lock after merge - new mixin "openedItemRows" to save the "show more/show less" in stable

* mixin naming style

* fix buyQuestModal marginTop

* fix customMenuDropdown position

* fix userDropdown items

website/client/components/creatorIntro.vue

@@ -813,8 +813,6 @@ import notifications from 'client/mixins/notifications';
 import appearance from 'common/script/content/appearance';
 import appearanceSets from 'common/script/content/appearance/sets';
 
-import bModal from 'bootstrap-vue/lib/components/modal';
-
 import logoPurple from 'assets/svg/logo-purple.svg';
 import bodyIcon from 'assets/svg/body.svg';
 import accessoriesIcon from 'assets/svg/accessories.svg';
@@ -961,7 +959,6 @@ export default {
   mixins: [guide, notifications],
   components: {
     avatar,
-    bModal,
   },
   mounted () {
     if (this.editing) this.modalPage = 2;
@@ -1326,7 +1323,7 @@ export default {
         this.$store.state.tasks.data[`${task.type}s`].unshift(task);
       });
 
-      this.$root.$emit('hide::modal', 'avatar-modal');
+      this.$root.$emit('bv::hide::modal', 'avatar-modal');
       this.$router.push('/');
       this.$store.dispatch('user:set', {
         'flags.welcomed': true,