feat: add customClasses prop

vue/CIcon.vue

@@ -50,7 +50,7 @@ export default {
       }
     },
     classes () {
-      return this.customClasses || this.size ? `c-icon-${this.size}` : 'c-icon'
+      return this.customClasses || (this.size ? `c-icon-${this.size}` : 'c-icon')
     }
   },
   methods: {

vue/dist/coreui-icons-vue.common.js

@@ -1247,7 +1247,7 @@ if (typeof window !== 'undefined') {
 // Indicate to webpack that this file can be concatenated
 /* harmony default export */ var setPublicPath = (null);
 
-// CONCATENATED MODULE: ./node_modules/cache-loader/dist/cjs.js?{"cacheDirectory":"node_modules/.cache/vue-loader","cacheIdentifier":"6d8e4675-vue-loader-template"}!./node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!./node_modules/cache-loader/dist/cjs.js??ref--0-0!./node_modules/vue-loader/lib??vue-loader-options!./CIcon.vue?vue&type=template&id=54bbae4a&
+// CONCATENATED MODULE: ./node_modules/cache-loader/dist/cjs.js?{"cacheDirectory":"node_modules/.cache/vue-loader","cacheIdentifier":"6d8e4675-vue-loader-template"}!./node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!./node_modules/cache-loader/dist/cjs.js??ref--0-0!./node_modules/vue-loader/lib??vue-loader-options!./CIcon.vue?vue&type=template&id=39df52c8&
 var render = function () {var _vm=this;var _h=_vm.$createElement;var _c=_vm._self._c||_h;return _c('svg',{class:_vm.classes,style:(_vm.style),attrs:{"xmlns":"http://www.w3.org/2000/svg","viewBox":_vm.viewBox},domProps:{"innerHTML":_vm._s(_vm.icon.svgContent)}})}
 var staticRenderFns = []
 
@@ -1333,7 +1333,7 @@ var es6_string_includes = __webpack_require__("2fdb");
       };
     },
     classes: function classes() {
-      return this.customClasses || this.size ? "c-icon-".concat(this.size) : 'c-icon';
+      return this.customClasses || (this.size ? "c-icon-".concat(this.size) : 'c-icon');
     }
   },
   methods: {

vue/dist/coreui-icons-vue.umd.js

@@ -1256,7 +1256,7 @@ if (typeof window !== 'undefined') {
 // Indicate to webpack that this file can be concatenated
 /* harmony default export */ var setPublicPath = (null);
 
-// CONCATENATED MODULE: ./node_modules/cache-loader/dist/cjs.js?{"cacheDirectory":"node_modules/.cache/vue-loader","cacheIdentifier":"6d8e4675-vue-loader-template"}!./node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!./node_modules/cache-loader/dist/cjs.js??ref--0-0!./node_modules/vue-loader/lib??vue-loader-options!./CIcon.vue?vue&type=template&id=54bbae4a&
+// CONCATENATED MODULE: ./node_modules/cache-loader/dist/cjs.js?{"cacheDirectory":"node_modules/.cache/vue-loader","cacheIdentifier":"6d8e4675-vue-loader-template"}!./node_modules/vue-loader/lib/loaders/templateLoader.js??vue-loader-options!./node_modules/cache-loader/dist/cjs.js??ref--0-0!./node_modules/vue-loader/lib??vue-loader-options!./CIcon.vue?vue&type=template&id=39df52c8&
 var render = function () {var _vm=this;var _h=_vm.$createElement;var _c=_vm._self._c||_h;return _c('svg',{class:_vm.classes,style:(_vm.style),attrs:{"xmlns":"http://www.w3.org/2000/svg","viewBox":_vm.viewBox},domProps:{"innerHTML":_vm._s(_vm.icon.svgContent)}})}
 var staticRenderFns = []
 
@@ -1342,7 +1342,7 @@ var es6_string_includes = __webpack_require__("2fdb");
       };
     },
     classes: function classes() {
-      return this.customClasses || this.size ? "c-icon-".concat(this.size) : 'c-icon';
+      return this.customClasses || (this.size ? "c-icon-".concat(this.size) : 'c-icon');
     }
   },
   methods: {