move multiselect components, week start and timezon functions to ui package

resources/js/packages/ui/src/utils/settings.ts

@@ -0,0 +1,19 @@
+export function getWeekStart() {
+    const weekStart = window?.getWeekStartSetting() as string;
+
+    if (!weekStart) {
+        throw new Error(
+            'Please make sure to provide the current user week start setting as a vue inject (week_start)'
+        );
+    }
+    return weekStart;
+}
+export function getUserTimezone() {
+    const timezone = window?.getTimezoneSetting() as string;
+    if (!timezone) {
+        throw new Error(
+            'Please make sure to provide the current user timezone as a vue inject (timezone)'
+        );
+    }
+    return timezone;
+}