fix(components): empty icon component judgment (#4178)

* fix(components): empty icon component judgment

* revert: globals components

* fix(components): el-icon missing import

* fix: use shallowRef for icon components

* refactor: remove shallowRef

* fix: remove unused code

* fix: social-link icon size

* fix: time picker icon

* fix: v-if judge

packages/components/select/src/select.vue

@@ -161,13 +161,14 @@
             </template>
             <template #suffix>
               <el-icon
+                v-if="iconComponent"
                 v-show="!showClose"
                 :class="['el-select__caret', 'el-input__icon', iconReverse]"
               >
                 <component :is="iconComponent" />
               </el-icon>
               <el-icon
-                v-if="showClose"
+                v-if="showClose && clearIcon"
                 class="el-select__caret el-input__icon"
                 @click="handleClearClick"
               >