Add tags to issues for novice contributors

[aiiddqd]

I want contribute to the plugin.

but I don't know how to start.

it will be cool if small and simple tasks are marked in a special way.

examples:

• help wanted https://github.com/freescout-helpdesk/freescout/issues?q=is%3Aissue+is%3Aopen+label%3A%22help+wanted%22

• good first issue https://github.com/microsoft/vscode/issues?q=is%3Aopen+is%3Aissue+label%3A%22good+first+issue%22