Adds some missing translations for the iOS 14 All Time widget

[Gio2018]

Fixes #NA

This PR adds translations for "Best views ever" and "Posts" in the medium size All Time widget.

To test:

• build, run and install a medium size All Time widget
• set any language on your device and make sure that the translations of "Best views ever" and "Posts" look correct. They can me matched against the Localizable.strings files that can be found in the WordPress target.

Notes:

• some languages did not have translations for one or both the two strings, in this case it will default to English
• the Italian translation of "Best views ever" in the widget will be different than the one in the main app (only exception): the translation was replaced with a shorter one with the same meaning.

PR submission checklist:

• I have considered adding unit tests where possible.
• I have considered adding accessibility improvements for my changes.
• I have considered if this change warrants user-facing release notes and have added them to RELEASE-NOTES.txt if necessary.

cc @jkmassel , this targets release 16.9.

[peril-wordpress-mobile]

You can trigger an installable build for these changes by visiting CircleCI here.

[peril-wordpress-mobile]

You can trigger optional UI/connected tests for these changes by visiting CircleCI here.

[mindgraffiti]

Nice work @Gio2018!

[Gio2018]

Thank you for reviewing @mindgraffiti !!