Add a Filter section to the annotation export dialog so users who color-code
highlights (e.g. red for important, yellow for difficult words) can export only
selected colors and styles.
The selection is stored as exclusions in NoteExportConfig, so an empty filter
exports everything and any color or style added later is included by default.
A new pure helper filterExportGroups applies the filter to both the default
formatter and the custom-template paths, and only filters a dimension when at
least two distinct values are present so a hidden row never silently drops notes.
Co-authored-by: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
Huang Xin
dced42912f