Implement category multi-select chip filters on the Expenses List screen

[pedrazamiguez]

Problem / Motivation

Users cannot currently filter the expenses list by specific categories, making it difficult to analyze subsets of their spending.

Proposed Solution

• Add a scrollable row of multi-select chips for available categories on the Expenses List screen.
• Update the list to only show expenses that match the selected categories.
• Ensure chips use localized category names.

Acceptance Criteria

• Category chips are displayed and selectable.
• Expenses list accurately reflects the filtered categories.
• 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

• Custom category creation.

Related Issues / PRs

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

[github-actions]

🌱 Branch created

feature/SPLTRP-1501

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-1501
git pull origin develop

📌 When creating your PR

• Base branch: develop
• Title:

  [SPLTRP-1501]: Implement category multi-select chip filters on the Expenses List screen
  

• Description: Closes #1501