Feature-request: add translatable="false" to strings

The idea is that sometimes we need a string because of how the system works but it should not be translatable.

Sometimes we need a string but we don't want to hard code it in the code, or it is displayed in a place where we need it as a @String,

<string id="version" translatable="false">1.2.3</string>

<string id="unit" translatable="false">km</string>

<string id="empty" translatable="false"></string>