feat(xworkspaces): Add option to disable scroll wrap

[Cationiz3r]

What type of PR is this? (check all applicable)

• Refactor
• Feature
• Bug Fix
• Optimization
• Documentation Update
• Other: Replace this with a description of the type of this PR

Description

Added option enable-wrap (enabled by default) for the xworkspaces module. When disable, scrolling the module at the last workspace will not return you to the first, and vice versa.

Related Issues & Documents

Documentation (check all applicable)

• This PR requires changes to the Wiki documentation (describe the changes)
• This PR requires changes to the documentation inside the git repo (please add them to the PR).
• Does not require documentation changes

You can add this at the end of the Basic settings section:

; Wrap the last workspace to the first one
; Default: true
wrapping-scroll = false

[patrick96]

Please also add a changelog entry: https://github.com/polybar/polybar/blob/master/CONTRIBUTING.md#changelog

[patrick96]

There is still a compiler warning, but otherwise looks good.