Remove alternative text if there are none

Julien LepillerSun Jul 18 19:26:41+0200 2021

86470b7

nani/app/fastlane/metadata/android/fr/images/phoneScreenshots
namelast commitdate
dicoList.pngUpdate screenshotsThu Jun 11 04:21:54+0200 2020
mainSearch.pngUpdate screenshotsThu Jun 11 04:21:54+0200 2020
radicals.pngUpdate screenshotsThu Jun 11 04:21:54+0200 2020