feat: add vscode-web feature (Microsoft's official VS Code web server) #75

Job	Run time
test-docs	18s
test-global	6s
test-autogenerated (code-server, ubuntu:latest)	48s
test-autogenerated (code-server, mcr.microsoft.com/devcontainers/base:ubuntu)	43s
test-scenarios (vscode-web)	2m 44s
test-autogenerated (code-server, debian:latest)	1m 17s
test-scenarios (code-server)	6m 53s
test-autogenerated (code-server, fedora:latest)	55s
	13m 44s

Provide feedback