[web] File action for .url files

[kulmann]

Description

User Stories

• As a user I want .url files to be handled on click, so that I can work with file based bookmarks / shortcuts.

Value

Acceptance Criteria

• file action for .url files
• handler reads the url inside the .url file and sets the url as new location
• icon: book-mark, global (@tbsbdr please pick one)
• label Open shortcut
• code location: files app
• incorporate security research findings from [web] Create Shortcuts: webpage #9796 upon opening urls
• (this is the default action for .url files)
• if the URL links to an exernal resource (!= serverurl) the URL is opened in a new window

Definition of ready

• everybody needs to understand the value written in the user story
• acceptance criteria has to be defined
• all dependencies of the user story need to be identified
• feature should be seen from an end user perspective
• user story has to be estimated
• story points need to be less then 20

Definition of done

• Functional requirements
  • functionality described in the user story works
  • acceptance criteria are fulfilled
• Quality
  • code review happened
  • CI is green
  • critical code received unit tests by the developer
  • automated tests passed (if automated tests are not available, this test needs to be created and passed
• Non-functional requirements
  • no sonar cloud issues