Translate new strings to Romanian

[tmihai20]

Translated newly added strings to Romanian. Also made minor grammar changes.

Please check that your pull request pass this checks:

• My changes respect the Kodi add-on development rules
• My code is both Python 2 and 3 compatible
• My code follows the code style of this project (PEP8, long lines allowed if make sense)
• I made sure there wasn't another Pull Request opened for the same update/change
• I have successfully tested my changes locally

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Adding a new region/hbo go version

Description: