Timetrack v2.5

Update project version to 2.5.0

The version metadata in the TimeTrack.csproj file has been updated from 2.4 to 2.5.0. This includes changes to the `<Version>`, `<AssemblyVersion>`, `<FileVersion>`, and `<InformationalVersion>` elements, indicating a new release with potential new features, improvements, or bug fixes.

Timetrack v2.4

Features:

- Add billable units column to main DataGrid showing 6-minute block calculations per entry
- Fix real-time update of billable units when editing time entries
- Add dynamic assembly description loading in About window
- Update project description to "MSP time tracking with instant billable units calculation"

UI Improvements:
- Add BillableUnits property to TimeEntry with proper change notifications
- Right-align billable units column for better readability

Configuration:
- Disable automatic Git version suffix in assembly version
- Add SourceRevisionId and IncludeSourceRevisionInInformationalVersion settings
- Update assembly metadata (company, authors, copyright)

Timetrack v2.3

Refer commits - many changes

TimeTrack v2

TimeTrack v2 First release