Allow configurable snooze duration using SharedPreferences

[Apprentice2907]

Description

This pull request removes the hardcoded snooze duration and introduces a configurable snooze duration using Android SharedPreferences. The default behavior remains unchanged (5 minutes), while allowing future customization.

Type of Change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Refactor (code improvement/cleanup without logical changes)
• UI/Design change

Proposed Changes

• Removed the hardcoded snooze duration in AlarmSnoozeReceiver
• Added Preferences.kt to store and retrieve snooze duration using SharedPreferences
• Preserved the default snooze duration of 5 minutes to maintain existing behavior

Fixes #(issue_no)

Replace issue_no with the issue number which is fixed in this PR
Fixes #5

Screenshots

Not applicable (logic-level change, no UI updates).

Checklist

• Tests have been added or updated to cover the changes
• Documentation has been updated to reflect the changes
• Code follows the established coding style guidelines
• All tests are passing

[Abhishek14104]

Thanks for the PR! I think it would be better to avoid using SharedPreferences here to prevent unnecessary global state and data fragmentation. Since we already have a DB setup, adding a new column/row to the existing table would be more consistent with the current architecture.