Let users manually alter the date on proposal header

💬 Conversation (#215471079777418): https://app.intercom.com/a/inbox/stmnrgsx/inbox/shared/all/conversation/215471079777418?source=Slack-26ab012c48b2462781ad6044ba3c9aaa

In-app chat (bot user, don't engage) started a new conversation >>> User is exporting a proposal to PDF and it's showing the date as October 1, but they need it to show September 30. How can they set or lock a specific date on a proposal PDF? Go to conversation to respond: https://app.intercom.com/a/inbox/stmnrgsx/inbox/shared/all/conversation/215471079777418?source=Slack-26ab012c48b2462781ad6044ba3c9aaa