Change "direct message" nomenclature to "private mention" in web UI (#24248)

app/javascript/mastodon/components/status.jsx

app/javascript/mastodon/components/status_action_bar.jsx

...avascript/mastodon/features/account/components/header.jsx

app/javascript/mastodon/features/direct_timeline/index.jsx

app/javascript/mastodon/features/getting_started/index.jsx

...script/mastodon/features/status/components/action_bar.jsx

...t/mastodon/features/status/components/detailed_status.jsx

app/javascript/mastodon/features/status/index.jsx

...ript/mastodon/features/ui/components/navigation_panel.jsx

app/javascript/mastodon/locales/af.json

app/javascript/mastodon/locales/an.json

app/javascript/mastodon/locales/ar.json

app/javascript/mastodon/locales/ast.json

app/javascript/mastodon/locales/be.json

app/javascript/mastodon/locales/bg.json

app/javascript/mastodon/locales/bn.json

app/javascript/mastodon/locales/br.json

app/javascript/mastodon/locales/bs.json

app/javascript/mastodon/locales/ca.json

app/javascript/mastodon/locales/ckb.json