Asset thumbnails are not rendered and asset names are hard to read

Regression in 6.2.4

It is not possible to see the asset names as the word thumbnail overlaps with each asset name. It is reproducible in demoauthor.

Steps to reproduce

• Go to the Assets app-> https://demoauthor.magnolia-cms.com/.magnolia/admincentral#app:dam
• Browser any of the folders, and see that the word Thumbnail is overlapping with the names of the assets:

Expected results

 You should be able to see the asset name

Actual results

The word thumbnail overlaps with the asset name

Development notes
The issue is happening in class info.magnolia.ui.contentapp.configuration.column.renderer.HtmlCleaningRenderer.

Workaround

It is possible to turn thumbnail to false as a workaround.

To find the definitions, go to the resources app, and edit: 

JCR Asset browser - /dam-app-jcr/decorations/dam-assets-app/apps/dam.subApps.yaml

  workbench:
    contentViews:
      - name: tree
        ...
        multiSelect: true
        columns:
          jcrName: &name
            thumbnails: false #MGNLUI-6418
 
      - name: list
       columns:
         name:
           thumbnails: false #MGNLUI-6418
           ... 

The old asset chooser:
- http://localhost:8080/.magnolia/admincentral#app:resources:browser;/dam-app-core/apps/dam-chooser.yaml::

The same fix can be done for new asset chooser:

• http://localhost:8080/.magnolia/admincentral#app:resources:browser;/dam-app-core/dialogs/chooser.yaml::