Dark Theme for NodeBB using Google Material Design

Folk from amazing nodebb-theme-material, just make it become dark theme.
Follow design rule from Material design

Name		Name	Last commit message	Last commit date
Latest commit History 131 Commits
less		less
lib		lib
templates		templates
LICENSE.md		LICENSE.md
README.md		README.md
package.json		package.json
plugin.json		plugin.json
screenshot.png		screenshot.png
theme.json		theme.json
theme.less		theme.less

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