chore(l10n): update Latvian translations

Currently translated at 1.3% (1 of 74 strings)

Translation: Fossify/Notes
Translate-URL: https://hosted.weblate.org/projects/fossify/notes/lv/
Via: Weblate

Author: Edgars Andersons

app/src/main/res/values-lv/strings.xml

@@ -1,2 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
-<resources></resources>
+<resources>
+    <string name="open_file">Atvērt datni</string>
+</resources>