fix(readme): correct link to PAT settings

See merge request gitlab-org/gitlab-vscode-extension!278

Resolve "Warn users that they should use supported GitLab version"

See merge request gitlab-org/gitlab-vscode-extension!252

Some features do not work after GitLab version 13.5.
This update alerts the user that they are using an outdated
version.

fix: each overview tab gets opened only once

See merge request gitlab-org/gitlab-vscode-extension!277

fix: limit commenting only to GitLab MRs

See merge request gitlab-org/gitlab-vscode-extension!276

refactor: convert webview_controller to TypeScript and make it a class

See merge request gitlab-org/gitlab-vscode-extension!272

ci: fix the commit-lint script to reflect new squash logic

See merge request gitlab-org/gitlab-vscode-extension!275

fix: validate CI command didn't show validation result

See merge request gitlab-org/gitlab-vscode-extension!273

fix:  comment controller can be disposed regardless of API failures

See merge request gitlab-org/gitlab-vscode-extension!274

399 - expand glob pattern for gitlab-ci.yml file

See merge request gitlab-org/gitlab-vscode-extension!270

This was caused by converting the validation response to boolean instead
of returning all details.

docs: turn MR description into a list

See merge request gitlab-org/gitlab-vscode-extension!267

refactor: handle commenting on the last line

See merge request gitlab-org/gitlab-vscode-extension!271

refactor: fix diff algorithm

See merge request gitlab-org/gitlab-vscode-extension!268

chore: fix eslint errors that got to master from outdated MR

See merge request gitlab-org/gitlab-vscode-extension!269

fix: remove the broken code related to creating user snippets

See merge request gitlab-org/gitlab-vscode-extension!265

By stipping away all but unchanged lines we allowed edge cases when
a file started or ended with changes. In this scenario we wrongly
addded unchanged lines to the beginning or the end of the file.

feat: create new MR diff comments

See merge request gitlab-org/gitlab-vscode-extension!266