Implemented strict linting standards and prettier formatting config. (#248)

* Implemented strict linting standards and prettier formatting config.

* More linter fixes and type updates.

* More linter updates and type fixes

* Remove noisy comments

* Linter and type updates

* Linter, formatting and type updates.

* Linter updates

* Type updates

* Type updates

* fixed all linter errors

* Fixed all linting, formatting and type issues.

* Resolve merge conflicts.

widget/settings/shared/components/wallpaper.ts

@@ -0,0 +1,20 @@
+import { Opt } from 'lib/option';
+import { Attribute, BoxWidget } from 'lib/types/widget';
+import Wallpaper from 'services/Wallpaper';
+
+export const wallpaperInputter = <T extends string | number | boolean | object>(
+    self: BoxWidget,
+    opt: Opt<T>,
+): Attribute | void => {
+    if (typeof opt.value === 'string') {
+        return (self.child = Widget.FileChooserButton({
+            on_file_set: ({ uri }) => {
+                const newValue: string = uri!.replace('file://', '');
+                opt.value = newValue as T;
+                if (options.wallpaper.enable.value) {
+                    Wallpaper.set(newValue);
+                }
+            },
+        }));
+    }
+};