feat: add first day of week user setting (#1249)

* feat: add first day of week user setting

* fix: add missing migrations

* fix: format and test issues

* fix: deepsource issue

* refactor: rename first-day-of-week procedure

packages/validation/src/user.ts

@@ -1,3 +1,4 @@
+import type { DayOfWeek } from "@mantine/dates";
 import { z } from "zod";
 
 import { colorSchemes } from "@homarr/definitions";
@@ -103,6 +104,10 @@ const changeColorSchemeSchema = z.object({
   colorScheme: zodEnumFromArray(colorSchemes),
 });
 
+const firstDayOfWeekSchema = z.object({
+  firstDayOfWeek: z.custom<DayOfWeek>((value) => z.number().min(0).max(6).safeParse(value).success),
+});
+
 export const userSchemas = {
   signIn: signInSchema,
   registration: registrationSchema,
@@ -115,4 +120,5 @@ export const userSchemas = {
   changeHomeBoard: changeHomeBoardSchema,
   changePasswordApi: changePasswordApiSchema,
   changeColorScheme: changeColorSchemeSchema,
+  firstDayOfWeek: firstDayOfWeekSchema,
 };