Translated structure-filters.md and structure-widgets.md. [skip ci]

add missing semicolon, fixes #5393

[skip ci] Spanish translation updates and small fixes

[skip ci] fix spanish docs and add DatePicker into conventions

fixes #5128

translate routing and bootstrapping

Updated Greek translation.

fix grammar, typo and translate conventions

Fix translate

Translate Images

[skip ci] Fix translate

[skip ci] Create French structure-overview.md

[ci skip] Create French start-looking-ahead.md