Web IDE displays "LF" line ending when file is "CRLF"
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### Summary
The Web IDE displays files with CRLF endings as though they are LF.
With terraform projects it does not matter for *MOST* files. However, when a terraform provider enables pushing the file to a client, some parts of Windows may be sensitive to line endings - notably PowerShell, which is used as a Windows automation language.
I am seeing some evidence it may also be using UTF-16 encoding rather than the UTF-8 indicated in the UI.
### Steps to reproduce
1. Create or change a file to CRLF file endings. Change can be done by clicking line ending type in the status bar.
1. Notice that saving the file causes a commit to be necessary (git detected the diff)
2. Ensure .gitattributes forces the file type to "CRLF" on checkout with
````
*.ps1 text eol=crlf
````
3. optionally force a workspace setting for vs code for new files in the project
```
{
"files.eol": "\r\n"
}
```
4. Commit the file - the character display at the bottom of the screen changes from CRLF to LF
5. Check the file out on another machine
6. Use cat -ve to see that the file is actually "CRLF" (ends of lines contain "M$" rather than just "$").
### Example Project
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behavior, and link to it here in the bug report. If you are using an older version of GitLab, this
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### What is the current *bug* behavior?
Web IDE always reverts to displaying "LF" line ending, even for files saved with "CRLF"
### What is the expected *correct* behavior?
Web IDE correctly reads and displays actual line endings.
### Relevant logs and/or screenshots




### Output of checks
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#### Results of GitLab environment info
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<summary>Expand for output related to GitLab environment info</summary>
<pre>
(For installations with omnibus-gitlab package run and paste the output of:
`sudo gitlab-rake gitlab:env:info`)
(For installations from source run and paste the output of:
`sudo -u git -H bundle exec rake gitlab:env:info RAILS_ENV=production`)
</pre>
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#### Results of GitLab application Check
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<details>
<summary>Expand for output related to the GitLab application check</summary>
<pre>
(For installations with omnibus-gitlab package run and paste the output of:
`sudo gitlab-rake gitlab:check SANITIZE=true`)
(For installations from source run and paste the output of:
`sudo -u git -H bundle exec rake gitlab:check RAILS_ENV=production SANITIZE=true`)
(we will only investigate if the tests are passing)
</pre>
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### Possible fixes
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issue