Translation fixes - properties at chat.json (french, russian and portuguese)

[GabriielEger]

Changed empty_brain_title_intro property to chat_title_intro in french, russian and portuguese as well (english and spanish was different already).

While building the setup, when I ran yarn install, some changes were automatically made at the yarn.lock file. I hope it's not a problem.

Thank you. :)

[StanGirard]

Don't add the yarn.lock ;)

[GabriielEger]

Hey @StanGirard! How are you? Is it alright now? Could you explain to me why there are now two properties called "empty_brain_title_intro" and "chat_title_intro" in chat.json, if only "chat_title_intro" is being used? I made changes, but on merge, the code now looks like this. Thank you. :)

[StanGirard]

File is still present in commit :)

What I meant is don't include your yarn.lock in the pr but don't add it to gitignore either :) just don't commit it to the pr :)