feature: create POST api done.

src/stores/acctMgmt.js

@@ -69,6 +69,28 @@ export default defineStore('acctMgmtStore', {
           isEditHovered: false,
       }));
     },
+    /**
+     * Create new user in database.
+     * @param {object} userToCreate
+     * userToCreate {
+     * "username": "string",
+     * "password": "string",
+     * "name": "string",
+     * "is_admin": boolean,
+     * "is_active": boolean,
+     * }
+     */
+    async createNewAccount(userToCreate) {
+      const apiCreateAccount = `/api/users`;
+
+      try{
+        const response = await this.$axios.post(apiCreateAccount, userToCreate);
+        console.log('TODO: response:', response, response.status);
+      }
+      catch(error) {
+        apiError(error, 'Failed to add a new account');
+      };
+    },
     /**
      * According to mouseover or mouseleave status, change the bool value.
      * @param {string} username