Added sddm bg change script for the new theme layout

[drnikos]

Pull Request

Description

Modified the old sddmwall.sh script to work in the new theme format, and now it reads the current desktop and sddm theme (only tested it on corners theme) and changes the background of the sddm theme to the current wallpaper

Type of change

Please put an x in the boxes that apply:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Documentation update (non-breaking change; modified files are limited to the documentations)
• Technical debt (a code change that does not fix a bug or add a feature but makes something clearer for devs)
• Other (provide details below)

Checklist

Please put an x in the boxes that apply:

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My commit message follows the commit guidelines.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added a changelog entry.
• I have added necessary comments/documentation to my code.
• I have added tests to cover my changes.
• I have tested my code locally and it works as expected.
• All new and existing tests passed.

[abenezerw]

Its not working on my system if its just putting that file into the directory.

[kRHYME7]

Would t be fair if I add a functionality same as this in the Hyde-cli ?

[drnikos]

Its not working on my system if its just putting that file into the directory.

Are you using the Candy theme? I think it selects randomly one of the backgrounds in the background directory,

the script replaces the bg.png, so I kept only that in the BackgroundS, and now it always uses that bg.

[drnikos]

Would t be fair if I add a functionality same as this in the Hyde-cli ?

It woud be nice!