Replaces the block-character fallback with proper transliteration for
Polish (ą→a, ć→c, ę→e, ł→l, ń→n, ó→o, ś→s, ź→z, ż→z), German (ä ö ü ß),
and common French/Spanish/Portuguese accents. Unknown codepoints fall back
to '?' instead of █.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add getCharWidth()/getLineHeight() virtual methods to DisplayDriver so
all layout math adapts to whatever font is active
- Fix Lemon font baseline offset from +8 to +6 (cap height, not FONT_ASCENT)
- Add LemonIcons.h with Private Use Area glyph table; U+E03B mute icon
rendered via drawLemonChar icon lookup
- FullscreenMsgView: compute wrap width and visible lines dynamically from
display font metrics instead of hardcoded constants
- SettingsScreen and MessagesScreen: replace hardcoded ITEM_H/VISIBLE with
members computed at render() time from getLineHeight()
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
- Add translateUTF8ToBlocks() method to convert UTF-8 characters to displayable blocks
- Add drawTextEllipsized() method for text truncation with ellipsis
- Apply UTF-8 filtering to node names, recent contacts, and message content
- Use ellipsized text rendering for recent contacts to prevent overflow
- Addresses PR feedback by moving text processing to DisplayDriver level
- Added getTextWidth method to DisplayDriver interface
- Implemented getTextWidth in all display classes
- Updated examples to use getTextWidth directly
