fix: label notes dissapear after submitting a comment

Closes #274

See merge request gitlab-org/gitlab-vscode-extension!137

refactor: use contants for commands instead of string literals

See merge request gitlab-org/gitlab-vscode-extension!136

docs: document changes to the sidebar and MR diff

See merge request gitlab-org/gitlab-vscode-extension!135

This reverts commit 55cbad7a

feat: remove experimental features feature flag

See merge request gitlab-org/gitlab-vscode-extension!133

feat(mr review): show changed file diff (API-provided)

See merge request gitlab-org/gitlab-vscode-extension!132

fix: handle disabled pipelines or MRs

See merge request gitlab-org/gitlab-vscode-extension!131

The "For current branch" view was completely failing when pipelines
or MRs were disabbled for the current project.

feat: show changed files for the MR

See merge request gitlab-org/gitlab-vscode-extension!129

fix: custom queries don't work with scoped labels

See merge request gitlab-org/gitlab-vscode-extension!128

docs: update development process with new team info

See merge request gitlab-org/gitlab-vscode-extension!127

fix: don't double send message from issue detail

See merge request gitlab-org/gitlab-vscode-extension!125

This issue has been caused by registering the send listener twice.

chore: change group label in issue templates

See merge request gitlab-org/gitlab-vscode-extension!126

style: introduce eslint and prettier to the webview subproject

See merge request gitlab-org/gitlab-vscode-extension!124

refactor(gitlab_service): convert service to TypeScript

Closes #220

See merge request gitlab-org/gitlab-vscode-extension!122

fix: parse remotes with trailing slash

Closes #121

See merge request gitlab-org/gitlab-vscode-extension!123

test(git_service): remove circular dependency and add tests

See merge request gitlab-org/gitlab-vscode-extension!121

feat: include user-agent header in all API requets

See merge request gitlab-org/gitlab-vscode-extension!118