Link detection for files not working in task terminals

[kenneth-marut-work]

Bug Description:

When output is generated in a terminal which has been started by a task, file link detection does not seem to work which is inconvenient when you want a quick way to open files mentioned in the terminal.

Steps to Reproduce:

Good Behavior

1. Open VSCode to an empty folder and create a .vscode/tasks.json file as well as an empty file named test.txt.
2. Open a VSCode terminal and run the command echo $PWD/test.txt, hover over the terminal output and you should be able to ctrl+click on the file name
3. Populate the tasks.json file with the content below and run that task, step 2 should still work:

{
    "version": "2.0.0",
    "tasks": [
        {
            "command": "echo $PWD/test.txt",
            "label": "Test Task",
            "type": "shell"
        }
    ]
}

Bad Behavior
Repeat the above steps in Theia, but notice that the output generated from the task is not clickable

Additional Information

• Operating System: Linux
• Theia Version: Master