Update tweet cell datelabel timeStyle to abbreviated

[mltbnz]

📲 What

• Update the timeStyle in the TwitterCell DateFormatter from .short to .abbreviated
• Uppercase the abbreviated timeLabel

🤔 Why

In some languages the .short timeStyle of the DateComponentsFormatter produces some long strings e.g. in Italian 1 Day becomes 1 giorno In the case of the tweet date time interval it is more appropriate to display an abbreviated timeStyle since we save space and it is common to do. Also Twitter itself uses that format

👀 See

Screenshots, external resources?

• [x] Added snapshot tests (using iPhone 8 Simulator)

Before 🐛	After 🦋

Also

• SnapShot and Unit test xctesplans are updated with a pinned region and language for reproducible tests