Add setting to set preferred language for the Puppeteer#418

juuso-turunen wants to merge 2 commits intoyzane:masteryzane/vscode-markdown-pdf:masterfrom

juuso-turunen:change-date-type-per-preferred-languagejuuso-turunen/vscode-markdown-pdf:change-date-type-per-preferred-languageCopy head branch name to clipboard