Filter Command Palette in English in addition to local language (#19166)

The bulk of this work is changing `Command::Name` (and its descendants
like `GenerateName`) to support looking up names in English and in the
local language.

When matching a "palette item" with a "subtitle" (a new field introduced
to store the English command name when the current language is not
English), the weight of the subtitle is used only if it is greater than
the weight of the name. This ensures that we do not penalize or
over-promote results that contain similar Latin letters in both fields.

Refs #19130, #19131, #19132, #19165
Closes #7039