Bump handlebars from 4.4.0 to 4.7.6 in /lib/darkmode-js#26

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dependabot/npm_and_yarn/lib/darkmode-js/handlebars-4.7.6SunYanCN/sunyancn.github.io:dependabot/npm_and_yarn/lib/darkmode-js/handlebars-4.7.6Copy head branch name to clipboard