Extend toast notifications to all forms (bills and locations)

- Update billActions to redirect with toast messages
  - billSaved: when bill is created or updated
  - billDeleted: when bill is deleted
- Update locationActions to redirect with toast messages
  - locationSaved: when location is created or updated
  - locationDeleted: when location is deleted
- Enhance MonthLocationList to check for all toast parameters
  - Consolidated success message handling for all operations
  - Clean up all URL parameters after showing toast
- Add translations for all success messages (EN and HR)
  - Bill saved/deleted messages
  - Location saved/deleted messages

User experience: All forms now redirect to home with toast
notifications, providing consistent feedback across the app.

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

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

app/lib/actions/locationActions.ts

@@ -6,10 +6,10 @@ import { BillingLocation, YearMonth } from '../db-types';
 import { ObjectId } from 'mongodb';
 import { withUser } from '@/app/lib/auth';
 import { AuthenticatedUser } from '../types/next-auth';
-import { gotoHome } from './navigationActions';
+import { gotoHome, gotoHomeWithMessage } from './navigationActions';
 import { unstable_noStore as noStore } from 'next/cache';
 import { IntlTemplateFn } from '@/app/i18n';
-import { getTranslations } from "next-intl/server";
+import { getTranslations, getLocale } from "next-intl/server";
 
 export type State = {
     errors?: {
@@ -221,12 +221,10 @@ export const updateOrAddLocation = withUser(async (user:AuthenticatedUser, locat
         }
     }
 
-    if(yearMonth) await gotoHome(yearMonth);
-
-    return {
-        message: null,
-        errors: undefined,
-    };
+    if(yearMonth) {
+        const locale = await getLocale();
+        await gotoHomeWithMessage(locale, 'locationSaved');
+    }
 });
 
 
@@ -402,10 +400,7 @@ export const deleteLocationById = withUser(async (user:AuthenticatedUser, locati
         // Delete only the specific location (current behavior)
         await dbClient.collection<BillingLocation>("lokacije").deleteOne({ _id: locationID, userId });
     }
-    
-    await gotoHome(yearMonth);
-    
-    return {
-        message: null
-    };
+
+    const locale = await getLocale();
+    await gotoHomeWithMessage(locale, 'locationDeleted');
 })