Add issue template for extension request

Closes #1696

Update CONTRIBUTING.md

It is not mentioned that the "release" script requires "jq" to be installed on the system to build code-server releases

Update AUR docs

Make automatic updates on v3.2.0 work again

Only for linux amd64 users which is the majority of our userbase.

Closes #1634

Document AUR install instructions

Improve clarity in guide and fix typo in FAQ

Add blank screen problem with iPad to FAQ

Allow user-data-dir and extension-dir in config.yaml

Mention yarn as another installation option

Fix typos

Closes #1676

Release v3.3.1

Stuff like ripgrep needs to be refetched so we cannot bundle
node_modules at all.

This release fixes bugs introduced with the release of v3.3.0

- We've reverted to VS Code 1.45.1 due to bugs in 1.46 #1667
- Accessing code-server from a web browser on Windows has been fixed #1642
- Search in project has been fixed #1665
- The glibc requirement on static releases has been lowered to v2.19 #1656

Pin to vscode 1.45.1

1.46 isn't released yet and has bugs.

Closes #1667

Fix paths from Windows client to non-Windows server

Fixes #1659
Fixes #1642

Workaround for GH Actions stripping permissions

Closes #1665

Closes #1655

Downgrade CI to Debian 8 for glibc 2.19

Closes #1656