feat(cli): Support displaying storage values in base-2 [#2492] (#2502)

* Update display on repository summary

* Apply throughout app

* Situate units_test

* Update Command Line documentation

* Envar cleanup

* Rename to BytesString

* Restore envar string available for test

* Remove extraneous empty check and restore UIPreferences field for frontend

* PR: config bool cleanup and missed `BaseEnv`s

* Fix lint and test

cli/command_policy_set.go

@@ -230,7 +230,7 @@ func applyOptionalInt64MiB(ctx context.Context, desc string, val **policy.Option
 	i := policy.OptionalInt64(v)
 	*changeCount++
 
-	log(ctx).Infof(" - setting %q to %v.", desc, units.BytesStringBase2(v))
+	log(ctx).Infof(" - setting %q to %v.", desc, units.BytesString(v))
 
 	*val = &i