Update handle explainer copy (#38646)

Co-authored-by: nicolas <nclm@users.noreply.github.com>

app/javascript/mastodon/features/account_timeline/components/account_name.tsx

@@ -189,7 +189,7 @@ const AccountNameHelp: FC<{
             </ol>
             <FormattedMessage
               id='account.name.help.footer'
-              defaultMessage='Just like you can send emails to people using different email clients, you can interact with people on other Mastodon servers – and with anyone on other social apps powered by the same set of rules as Mastodon uses (the ActivityPub protocol).'
+              defaultMessage='Just like you can send emails to people using different email providers, you can interact with people on other Mastodon servers, and with anyone on other Mastodon-compatible social apps.'
               tagName='p'
             />