Docs: remove implicit relative from translations; issue 4731

Docs: remove implicit relative from translations; issue 4731

Apply 88cfc9ee61 to tranlations.
In order to prevent `diff` and `patch` from applying short changes
to the wrong examples, given that the context is in different langages,
this patch first used `sed` with
    /^@lilypond\s*\[/,/@end lilypond/ s/^/;/
so each entire @lilypond example generated a diff hunk.