Add Auto Dark Mode

[jeanoskii]

Added a feature to automatically change Windows system and app themes from light to dark and vice versa, based on user defined sunset and sunrise times.

[leostudiooo]

Seems we've got the same feature with the scripts at t1m0thyj/WDD-scripts /stable with a similar implement.

Have you tested it yet whether it has the same problem(#427) like those scripts do? Maybe only changing registry doesn't work anymore.

[jeanoskii]

I wasn't aware about the scripts thing honestly. It wasn't touted as a feature in the WDD Github page, so I went ahead and implemented an Auto Dark Mode feature as part of the icon menu.

[leostudiooo]

I've checked your code and it's the same implement as the script's (by writing the registry key), so it probably has the same issue.

[jeanoskii]

I'll check if my implementation resolves #427

[t1m0thyj]

@jeanoskii Thanks for your contribution!

This feature is already implemented in the WDD-scripts repo, and I don't plan to add features unrelated to dynamic wallpaper into the core app.

For that reason I'm closing this PR, but would welcome a few other contributions:

I wasn't aware about the scripts thing honestly. It wasn't touted as a feature in the WDD Github page

• A PR that updates the WDD GitHub page to mention scripts more prominently would be welcome.

I've checked your code and it's the same implement as the script's (by writing the registry key), so it probably has the same issue.

• A PR that updates the ChangeWindowsAppTheme and ChangeWindowsSystemTheme scripts to fix this issue would also be welcome.