Fix issue 2962

[priyatanu]

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• [x] I've read the Contribution Guidelines and my PR doesn't break the rules.
• [x] I've read and understand the Developer Guidelines.
• [x] I confirm that I've run the code locally and everything works as expected.
• [x] My PR includes only the necessary changes to fix the issue (i.e., no unnecessary files or lines of code are changed).
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Screen recording of your changes (if applicable):

What's changed?

Describe with a few bullets what's new: -I've fixed technical debt from the code

• Transitioned from direct CategoryDao and WriteCategoryDao interactions to using the repository

Before	After
{media}	{media}
{media}	{media}

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• No cases
• ...

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• It works for settings screen
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Does this PR close any GitHub issues? (do not delete)

• Closes #2962

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[priyatanu]

https://github.com/user-attachments/assets/7cb90638-6ddd-43ca-bc22-0c1f6f5657d3

[Vishwa-Raghavendra]

@priyatanu a few notes:

1. Let's not update the CategoryRepo usages in the backup usacase because it seems too dangerous
2. Let's update CategoryDao -> CategoryRepo on all other places in the app

Also the dao layer deals with entity classes while repo layer deals with domain classes old backups will start failing