refactor: improve import order and code formatting

- Reordered and grouped imports consistently in backend and frontend files for better readability.
- Applied indentation and formatting fixes across frontend components, services, and backend modules.
- Adjusted multiline method calls and type definitions for improved clarity.

backend/src/messages/messages.controller.ts

@@ -31,10 +31,7 @@ export class MessagesController {
 	}
 
 	@Post()
-	sendMessage(
-		@Req() req: AuthenticatedRequest,
-		@Body() dto: CreateMessageDto,
-	) {
+	sendMessage(@Req() req: AuthenticatedRequest, @Body() dto: CreateMessageDto) {
 		return this.messagesService.sendMessage(req.user.sub, dto);
 	}
 }