[MERGE] various: update applications manifests

Purpose of this merge

 * improve the installation of modules;
 * module descriptions are not up to date in the software (still outdated
   screenshots for example). Some features are no longer there;
 * there is a lot of duplicated content to translate since apps are already
   described on our website;
 * apps in system homepage are not always called the same way than the
   module installed ;
 * showcase the website features in a neat apps store (remove tech
   dependencies, clean names and descriptions);

Specifications

 * improve kanban view of modules;
 * add a discover button that jumps on the website of the application;
 * do not fill text description in description html for apps as it is not
   user friendly;
 * remove deprecated index.html used as description_html;
 * update names and summaries of applications;
 * update names and summaries of website applications;
 * update some categories;
 * update website links;

See subcommits for more details.

This merge is related to task ID 47179 and 1861544. It closes PR #22689
and #25556. First one is about classic applications while second one is about
website applications.

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