add option to delete location in all subsequent months

- Added toggle in LocationDeleteForm for deleting locations from future months (disabled by default)
- Modified deleteLocationById action to support batch deletion across subsequent months
- When enabled, deletes all locations with same name in current and future months/years
- Only deletes user's own locations with proper data isolation
- Added translations for toggle text in Croatian and English
- Removed unused imports and variables to fix TypeScript warnings
- Uses efficient MongoDB deleteMany operation for bulk deletions

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>

app/ui/LocationDeleteForm.tsx

@@ -4,7 +4,6 @@ import { FC, ReactNode } from "react";
 import { BillingLocation } from "../lib/db-types";
 import { deleteLocationById } from "../lib/actions/locationActions";
 import { useFormState } from "react-dom";
-import { gotoUrl } from "../lib/actions/navigationActions";
 import Link from "next/link";
 import { useTranslations } from "next-intl";
 
@@ -16,14 +15,9 @@ export interface LocationDeleteFormProps {
 export const LocationDeleteForm:FC<LocationDeleteFormProps> = ({ location }) =>
 {
     const handleAction = deleteLocationById.bind(null, location._id, location.yearMonth);
-    const [ state, dispatch ] = useFormState(handleAction, null);
+    const [ , dispatch ] = useFormState(handleAction, null);
     const t = useTranslations("location-delete-form");
 
-
-    const handleCancel = () => {
-        gotoUrl(`/location/${location._id}/edit/`);
-    };
-
     return(
         <div className="card card-compact card-bordered min-w-[20em] max-w-[90em] bg-base-100 shadow-s my-1">
             <div className="card-body">
@@ -36,6 +30,13 @@ export const LocationDeleteForm:FC<LocationDeleteFormProps> = ({ location }) =>
                         })
                     }
                     </p>
+                    
+                    <div className="form-control">
+                        <label className="label cursor-pointer">
+                            <span className="label-text">{t("delete-in-subsequent-months")}</span> 
+                            <input type="checkbox" name="deleteInSubsequentMonths" className="toggle toggle-error" />
+                        </label>
+                    </div>
                     <div className="pt-4 text-center">
                         <button className="btn btn-primary w-[5.5em]">{t("confirm-button")}</button>
                         <Link className="btn btn-neutral w-[5.5em] ml-3" href={`/location/${location._id}/edit/`}>{t("cancel-button")}</Link>