Implement date range filters on the Expenses List screen

[pedrazamiguez]

Problem / Motivation

For longer trips, users want to view expenses from a specific timeframe, which is currently impossible without manually scrolling through the entire list.

Proposed Solution

• Implement a date range filter on the Expenses List screen (e.g., using a DatePickerDialog).
• Filter the expenses to only show those whose creation date falls within the selected range.

Acceptance Criteria

• Date range filter UI allows selection of start and end dates.
• Expenses list is filtered correctly by the chosen date range.
• All existing tests pass; new tests added where behaviour changes.
• make fast-check passes during iterative development (~15–30s).
• make check > build.log 2>&1 && echo "Check passed successfully" || (tail -n 100 build.log && exit 1) passes with 0 failures before merging.
• No new detekt findings introduced.

Out of Scope

• Complex pre-set ranges like "Last 7 days" (unless easy to add as a quick filter, focus on basic start/end date selection).

Related Issues / PRs

• Child of Track final stages of MVP development and release readiness #1401

[github-actions]

🌱 Branch created

feature/SPLTRP-1503

This branch has been automatically created based on develop.

🚀 Getting started

Fetch and switch to this branch with the latest changes from develop:

git fetch origin
git checkout feature/SPLTRP-1503
git pull origin develop

📌 When creating your PR

• Base branch: develop
• Title:

  [SPLTRP-1503]: Implement date range filters on the Expenses List screen
  

• Description: Closes #1503