✨ add LibreOffices extensions to alias file

[gheritarish]

Description

This PR adds in the file_aliases yaml four LibreOffice extensions: odg, odp, ods and odt. What looked like that before:

now looks like this:

This PR refers to the issue #474.

• Relevant Issues : (none)
• Relevant PRs : (none)
• Type of change :
  • New feature
  • Bug fix for existing feature
  • Code quality improvement
  • Addition or Improvement of tests
  • Addition or Improvement of documentation

[codecov-commenter]

Codecov Report

Merging #475 (f5cd4e6) into master (d17e3fc) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #475   +/-   ##
=======================================
  Coverage   89.13%   89.13%           
=======================================
  Files           8        8           
  Lines         552      552           
=======================================
  Hits          492      492           
  Misses         60       60           

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[avdv]

Thank you @gheritarish !