Add 'Charset: UTF-8' to the editor status bar (TLC is UTF-8 native).
Upgrade status bar from a single-styled Span to a multi-segment Line
with per-segment accent colours so the status reads at a glance:
- modified flag: warning colour (bold)
- filename: accent colour
- position (Ln/Col): info colour
- tab/charset/eol labels: dim shadow colour
- mode tag: warning colour
Tests: 1381 pass, zero warnings.
vasilito
5ad5e86e5c