easy-installer: Improve install zipped recovery scripts
Description
// Describe what the MR bring
Issue(s)
https://gitlab.e.foundation/e/backlog/-/issues/7776
Test environment
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non regression test
/!\ Checked OS should at least be tested: /!\
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windows -
linux -
MacOS Not supported yet_
Check list
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Self review -
Test procedure explained -
Tested on fresh install -
Tested applied as an update -
License -
Internal documentation -
User documentation