feat(NumberKeyboard): use delete icon instead of delete text (#6151)

src/number-keyboard/index.js

@@ -79,7 +79,7 @@ export default createComponent({
             { text: this.extraKey, type: 'extra', color: 'gray' },
             { text: 0 },
             {
-              text: this.showDeleteKey ? this.deleteText : '',
+              text: this.showDeleteKey ? this.deleteButtonText : '',
               type: this.showDeleteKey ? 'delete' : '',
               color: 'gray',
             }
@@ -95,10 +95,6 @@ export default createComponent({
 
       return keys;
     },
-
-    deleteText() {
-      return this.deleteButtonText || t('delete');
-    },
   },
 
   methods: {
@@ -184,8 +180,9 @@ export default createComponent({
             {this.showDeleteKey && (
               <Key
                 large
-                text={this.deleteText}
+                text={this.deleteButtonText}
                 type="delete"
+                color="gray"
                 onPress={this.onPress}
               >
                 {this.slots('delete')}