Move to nonpersistent background page

[metastable-void]

We should first move to a nonpersistent background page. This is required for #34.

[metastable-void]

Rewrite of the background script is required.

[metastable-void]

• LanguageSettings has internal state that would not be saved with a nonpersistent background page.

[metastable-void]

Blocked by:

content scripts for language overrides.