[Mobile] BO - List classic layouts is not responsive

[hibatallahAouadni]

Prerequisites

• I understand and accept the project's code of conduct
• I have already searched in existing issues and found no previous report of this bug.

Describe the bug and add screenshots

When you access to the List classic layouts or List modern layouts, on mobile, the table is displayed out of the card:

Expected behavior

the table is displayed in the card with overflow-x: auto;:

https://www.awesomescreenshot.com/video/6038010?key=fff472bc5944bae9745d793d943538c2

Steps to reproduce

1. BO>IMPROVE>Design>Email Theme
2. Scroll down to Email themes
3. Click on the Loop of classic or modern
4. See error > the table is not responsive

PrestaShop version(s) where the bug happened

1.7.7.8 & 1.7.8.0 & develop

PHP version(s) where the bug happened

7.2

If your bug is related to a module, specify its name and its version

No response

[Hlavtox]

@hibatallahAouadni All tables in BO need to be wrapped in table-responsive, until a mobile layout is implemented.

<div class="table-responsive-sm">
  <table class="table">
    ...
  </table>
</div>