🚀 Feature request: Improve Custom homepage reordering

### 🔖 Describe the solution you'd like

Try using this package [flutter_reorderable_grid_view](https://pub.dev/packages/flutter_reorderable_grid_view)

### 🩹 Describe alternatives you've considered

_No response_

### 👀 Have you checked if this bug report has been created already?

- [X] I checked and couldn't find similar issue

### 🏢 Have you read the Code of Conduct?

- [X] I have read the [Code of Conduct](https://github.com/AssistantNMS/App/blob/main/.github/CODE_OF_CONDUCT.md)

### Are you willing to submit PR?

Yes I am willing to submit a PR!

Start by locating the Custom homepage implementation and reviewing how its current item ordering works. Evaluate the proposed flutter_reorderable_grid_view package in that screen and its existing tests, if any. Done means users can reorder the homepage items reliably and the ordering remains correct after the interaction.

Written by the indexing model from the issue text.