[Activities] Some text are not localized

[FrancyCavallari]

Level (please ignore the "No translation warning"... we still miss that traslation in Arabic and the cell is empty in table)

Score & Best Score

[CatmanIta]

I went around the activities, and everything seems localized.

I think we need to tie the language however to the localization of the timestamp, as seen in activity or in the cards, as it is wrong to have it be defined by your mobile device.

[CatmanIta]

I updated the date text so it works correctly. There is a very minor issue, however. The text updates faster than Unity's builtin text. Try it out and tell me what you think, we could add a small delay if it becomes too ugly.