Replace the hardcoded "Bars" literal with a proper language string
(battery_bars) so the Battery display-mode menu value is translated and
voice-prompt safe. German is "Balken"; other supported languages get an
appropriate term. Bumps LANGUAGE_TAG_VERSION for the struct change.
Menu value voice announcement routes through the language table like any
other option value (plays silence until the voice-prompt pack is rebuilt
with a recording); the battery-status announce key already speaks the
percentage in Bars mode.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
bc9e5cb655