Implemented Wallpaper Selector and Matugen's Wallpaper based auto-theming. (#73)

* Implement matugen - WIP

* Added matugen

* Add types and cleanup code

* Matugen implementation updates and added more options such as scheme and contrast.

* Code cleanup and matugen settings renamed for clarity.

* Makon maroon a primary matugen color.

* Updates to handle variations of matugen colors

* Finalizing matugen and wrapping up variations.

* Minor styling updates of the settings dialog.

* Do a swww dependency check.

* Dependency logic update

* Switch shouldn't double trigger notifications now when checking dependency.

* Logic was inverted

* Add matugen to dependency checker.

* Fixed dependency checking conditional

* Update dependency list in readme and check for matugen before doing matugen operations

* Styling fixes

* OSD Fix

* Remove unused code from wallpaper service.

* Color fixes for matugen.

* Nix updates for new dependencies

* Change default wallpaper to empty.

* Added custom notification service for startup, cleaned up code and updated readme.

widget/settings/pages/config/general/index.ts

@@ -11,7 +11,7 @@ export const BarGeneral = () => {
             Header('General Settings'),
             Option({ opt: options.theme.font.name, title: 'Font', type: 'font' }),
             Option({ opt: options.theme.font.size, title: 'Font Size', type: 'string' }),
-            Option({ opt: options.theme.font.weight, title: 'Font Weight', subtitle: "100, 200, 300, etc.", type: 'number', increment: 100, min: 100, max: 900}),
+            Option({ opt: options.theme.font.weight, title: 'Font Weight', subtitle: "100, 200, 300, etc.", type: 'number', increment: 100, min: 100, max: 900 }),
             Option({ opt: options.terminal, title: 'Terminal', subtitle: "Tools such as 'btop' will open in this terminal", type: 'string' }),
 
             Header('On Screen Display'),