[book] uneven size of accented Greek

[tuurma]

Greek italic vowels (alpha, epsilon, eta, omicron, upsilon, omega but not iota) with oxytone accent (i.e. ά, έ, ή, ύ, ώ) are slighter larger than other letters; they should be the same size

cf difference between the heading and entry

[tuurma]

Γεώργιος.tex.gz

[tuurma]

https://gitlab.existsolutions.com/lgpn/lgpn-latex/issues/5