Bad display for ReadAloud menu in Fr

[gautierchomel]

French UI has a bad display for Readaloud options menu. Text is too big and that makes the checkbox displayed alone on one line.

[gautierchomel]

This happens also in Display menu :

[gautierchomel]

Lines with checkboxes should have same text size as other options (here Colonnes) and be justified left.

[danielweck]

Thank you for filing this bug Gautier. The style cascade is quite hard to modify due to side-effects, but I've managed to fix the problem without causing regressions:
9967b6b
(I've also fixed the lack of visual feedback for disabled menu items ... again, a bug caused by badly considered CSS selector specificity and nested classes + nested elements)