Release 1.3.0 · mage-os/theme-adminhtml-m137

What's Changed

docs: update CHANGELOG by @artKozynets in 4e3d009
style: category state icons / colour, jstree-marker size by @artKozynets in 037a86a
style: newsletter templates, newsletter queue, add, edit, preview tab, window by @artKozynets in 37c7201
style: data-grid inside modals, first col size, control el, columns inside modals by @artKozynets in acd5e13
style: rule tree, conditions types, fields, elements by @artKozynets in 300375b
style: jstree in modal slide by @artKozynets in 3403491
style: media gallery jstree by @artKozynets in 47b1e37
refactor: url rewrites, url rewrite, add, edit, rewrite types by @artKozynets in f4077d7
style: email templates, view, edit, preview by @artKozynets in 7c2b195
fix: less division when default config is parens-division by @artKozynets in a29bf93
style: attribute set and items by @artKozynets in 61c289a
style: add attribute and state icons by @artKozynets in fdc59a4
style: update data grid action columns icon by @artKozynets in ae516c7
refactor: move vars icons to expand by @artKozynets in e4d7ee8
style: update icon font by @artKozynets in 8787f51
feat: system messages ui improvement #18 by @artKozynets in #19

Full Changelog: 1.2.0...1.3.0