Latvian translation update
|Reported by:||edgarsj||Owned by:||nobody|
|Has patch:||yes||Needs documentation:||no|
|Needs tests:||no||Patch needs improvement:||no|
Localflavour app translation not completed. Otherwise should be 100%.
Message to other Latvians: If you find any typos you can contact me in case you're too lazy to fix them and create a ticket by yourselves.