refactor: update UI components and styles for improved consistency and functionality

- Refactored Skeleton component to include data-slot attribute and updated class names.
- Enhanced Switch component with size prop and improved styling.
- Updated Tooltip components to include data-slot attributes and improved styling.
- Refactored global CSS to use custom properties for theming and improved dark mode support.
- Added useIsMobile hook for responsive design handling.
- Updated IPC link implementation for tRPC in Electron.
- Adjusted ProjectsPage layout for better responsiveness.
- Removed outdated Tailwind configuration file and integrated Tailwind CSS with Vite.

src/main/ipc.ts

@@ -0,0 +1,89 @@
+/**
+ * Custom electron IPC ↔ tRPC v11 bridge.
+ *
+ * Replaces the incompatible electron-trpc package (v0.7.x bundles tRPC v10's
+ * callProcedure which checks `procedure._def[type]`, while tRPC v11 uses
+ * `procedure._def.type`).
+ */
+import { ipcMain, type BrowserWindow } from 'electron';
+import {
+  callTRPCProcedure,
+  getErrorShape,
+  getTRPCErrorFromUnknown,
+  transformTRPCResponse,
+  type AnyRouter,
+} from '@trpc/server';
+
+export const IPC_CHANNEL = 'trpc';
+
+interface IPCRequest {
+  method: 'request';
+  operation: {
+    id: number;
+    type: 'query' | 'mutation' | 'subscription';
+    path: string;
+    input?: unknown;
+  };
+}
+
+export function createIPCHandler<TRouter extends AnyRouter>({
+  router,
+  windows = [],
+}: {
+  router: TRouter;
+  windows?: BrowserWindow[];
+}) {
+  const config = router._def._config;
+
+  ipcMain.on(IPC_CHANNEL, async (event, message: IPCRequest) => {
+    if (message.method !== 'request') return;
+
+    const { id, type, path, input } = message.operation;
+
+    // Deserialize input through transformer (identity by default)
+    const rawInput = input !== undefined
+      ? config.transformer.input.deserialize(input)
+      : undefined;
+
+    // eslint-disable-next-line @typescript-eslint/no-explicit-any
+    const respond = (response: any) => {
+      if (event.sender.isDestroyed()) return;
+      const serialised = transformTRPCResponse(config, response);
+      event.reply(IPC_CHANNEL, serialised);
+    };
+
+    try {
+      const result = await callTRPCProcedure({
+        router,
+        path,
+        getRawInput: async () => rawInput,
+        ctx: {},
+        type,
+        signal: undefined as unknown as AbortSignal,
+        batchIndex: 0,
+      });
+
+      respond({ id, result: { type: 'data', data: result } });
+    } catch (cause) {
+      const error = getTRPCErrorFromUnknown(cause);
+      respond({
+        id,
+        error: getErrorShape({
+          config,
+          error,
+          type,
+          path,
+          input: rawInput,
+          ctx: {},
+        }),
+      });
+    }
+  });
+
+  // Attach additional windows later if needed
+  return {
+    attachWindow(_win: BrowserWindow) {
+      // No per-window setup needed — ipcMain.on is global
+    },
+  };
+}