Markor v2.11.0 (147)

See details at https://github.com/gsantner/markor/blob/master/NEWS.md#markor-v211---asciidoc-csv-and-org-mode-todotxt-advanced-search-line-numbers

- Reworked attachments (PR #2106 by @harshad1)
- Editor/viewer: Side margin improvements 2, closes #2111 (PR #2119 by @guanglinn)
- Format: Add Orgmode - SyntaxHighlight basic support (PR #2107 by @bigger124 @gsantner)
- Editor/viewer: Side margin improvements, closes #2111 (PR #2118 by @guanglinn)
- Reformat code, by @gsantner
- Update translations (PR #2108)
- ShareInto: Automatically remove new YouTube tracking parameter si
- New folder in copy/move dialog, closes #2093 (PR #2098)
- AsciiDoc: Support view-mode light theme, by @TimReset (#1880 #2091 #2092)
- Update translations (PR #2071)
- Line numbers improvements, by @harshad1 @guang-lin @gsantner (PR #2090)
- Feature: Add Line numbers support (Issue #2057, PR #2062, by @guang-lin)
- Chunked undo redo, by @harshad1 (#2052)
- Update translations (PR #2056)
- Update CSV documentation and NEWS/CHANGELOG (PR #2058)
- Markdown: Text converter do not make duplicate header id (closes #2045, by @gsantner)
