Hints for abraflexi-tools in main

Hints

• asv-description-first-para-too-short
  io.github.vitexsoftware.abraflexi_tools.metainfo.xml:12 - Set of tools providing the interact with Abra Flexi on command line
  The first `description/p` paragraph of this component might be too short (< 80 characters). Please consider starting with a longer paragraph to improve how the description looks like in software centers and to provide more detailed information on this component immediately in the first paragraph.