Bulk Select checkbox

src/composition/useEmailSelection.js

@@ -12,6 +12,14 @@ export const useEmailSelection = function(){
         this.emails.add(id);
       }
     },
+    clear(){
+      this.emails.clear();
+    },
+    addMultiple(emails) {
+      emails.forEach(email => {
+        this.emails.add(email)
+      })
+    },
     forSelected(fn){
       this.emails.forEach(email => {
         fn(email)