Migrate from window.electron to tauri IPC functions across components

- Replaced `window.electron.invoke` calls with equivalent `tauri` function calls for all IPC interactions.
- Removed `electron.d.ts` TypeScript definitions as they are no longer needed.
- Updated related logic for offline/online state synchronization.
- Added `types.rs` and `shared/mod.rs` modules to support Tauri IPC integration with Rust enums and shared logic.
- Refactored IPC request queues to use updated handler names for consistency with Tauri.

components/series/AddNewSeriesForm.tsx

@@ -17,6 +17,7 @@ import {SyncedBook} from "@/lib/models/SyncedBook";
 import OfflineContext, {OfflineContextType} from "@/context/OfflineContext";
 import {SeriesSyncContext, SeriesSyncContextProps} from "@/context/SeriesSyncContext";
 import {SyncedSeries, SyncedSeriesBook} from "@/lib/models/SyncedSeries";
+import * as tauri from '@/lib/tauri';
 
 interface AddNewSeriesFormProps {
     setCloseForm: Dispatch<SetStateAction<boolean>>;
@@ -88,7 +89,7 @@ export default function AddNewSeriesForm({setCloseForm, onSeriesCreated}: AddNew
             let response: string;
 
             if (isCurrentlyOffline()) {
-                response = await window.electron.invoke<string>('db:series:create', createData);
+                response = await tauri.createSeries(createData);
             } else {
                 response = await System.authPostToServer<string>(
                     'series/add',