Changing the quantity of the product in the cart doesn't change its price (offline mode)

[GabiDivante]

Current behavior

In offline mode, changing the quantity of the product in the cart does not change its price. Grand total is changing properly.
Gif: https://drive.google.com/file/d/1nxMzu9E0AOw-knQF3EGhUqCfjqlOI6I3/view?usp=sharing

Expected behavior

In offline mode, changing the quantity of the product in the cart change its price as well.

Steps to reproduce the issue

1. Go to branch develop
2. Add any product to cart
3. Change the Qty and look at how Product price and Grand total are changing
4. Go to offline mode
5. Change the Qty and look at how Product price and Grand total are changing

Can you handle fixing this bug by yourself?

• YES
• NO

Which Release Cycle state this refers to? Info for developer.

Pick one option.

• This is a bug report for test version on https://test.storefrontcloud.io - In this case Developer should create branch from develop branch and create Pull Request 2. Feature / Improvement back to develop.
• This is a bug report for current Release Candidate version on https://next.storefrontcloud.io - In this case Developer should create branch from release branch and create Pull Request 3. Stabilisation fix back to release.
• This is a bug report for current Stable version on https://demo.storefrontcloud.io and should be placed in next stable version hotfix - In this case Developer should create branch from hotfix or master branch and create Pull Request 4. Hotfix back to hotfix.

Environment details

• Browser: Chrome73
• OS:Ubuntu 18.04 LTS

Additional information

This issue doesn't appear on demo. Maybe related to #2828

[pkarw]

Change the Microcart/Product.vue and how it handles the offline mode

[GabiDivante]

@pkarw Here, I have also forgotten about the order summary in the checkout - the quantity of the product is correct but the price is not.

[pkarw]

Thanks! Fixed on branch #2887