Replace hardcoded date "CEdit (11-jan-2026)" with version "CEdit 1.0"
Add separate VERSION and APPNAME constants for better maintainability
Fixes issue [#329](#329)
Reviewed-on: #361
Reviewed-by: Burer <burer@noreply.localhost>
Reviewed-by: Max Logaev <maxlogaev@proton.me>
Co-authored-by: jaskaran-singh-77 <jassijatt951@gmail.com>
Co-committed-by: jaskaran-singh-77 <jassijatt951@gmail.com>