Add translations

[inakianduaga]

• [x] Add a main translation file that requires each of the submodules.
• [x] It also prefixes each one by the language key
• [x] Add the language into the state
• [x] Wire up the language selector dropdown to a state dispatcher

  TODO:

• [x] Pass the selected language to the orders component
• [x] Import the orders language file and pick from the selected language
• [x] Modify fields to use the language file key instead of the naked field key