fix(mobile): correct Estonian common, home and glanceable copy (#9464)

Value-level edits to apps/mobile/src/i18n/locales/et.json only.

- common.notFound, common.somethingWentWrong, home.couldNotLoadActiveSessions
  and feedback.noEmailApp drop the final full stop the English labels do not
  have; feedback.noEmailApp ends at the {{email}} placeholder.
- common.searchModels becomes the plural search prompt with an ellipsis.
- common.connectProvider becomes the imperative the action label at its call
  site needs.
- glanceable.planOf is a count separator instead of a fixed total,
  glanceable.filesChanged the partitive singular a preceding count needs,
  glanceable.finishedIn a duration prefix, and glanceable.failure.other
  sentence case.
- Every remaining ASCII three-dot ellipsis in the catalog becomes the ellipsis
  character.

Keys, placeholders and the English copy are unchanged.

Author: iscekic