i18n: Fix a smattering of strings that weren't getting translated.

These are some strings I spotted in English when playing around a bit
with the UI set to German, where our translations are near complete.

It'd be great to have a more systematic way of spotting this kind of
omission.  Probably a fairly simple linter could catch a lot of cases.

static/js/components.js

@@ -7,7 +7,7 @@ var exports = {};
         name: String toggle_name,
         selected: Integer selected_index,
         values: Array<Object> [
-            { label: String title }
+            { label: i18n.t(String title) }
         ],
         callback: function () {
             // .. on value change.