Say "Elevation (meters)", not just Elevation

[jidanni]

Here we see Height (meters),

But no
Elevation (meters)
just
Elevation.
If we want to know the units, we have to click on its "i". It's "just not fair."

[1ec5]

This proposal would require us to hedge a bit: either remove “Meters” from the field name, or create a separate “Elevation (Feet)” field for use in the United States, or ideally implement a proper measurement field type that won’t require a gloss in the field name: ideditor/schema-builder#15.