fix(imap, unibox): show the server's text for a codeless IMAP error; contact rail starts closed

- An IMAP NO/BAD without a response code (Gmail's "NO System Error")
  rendered as "Something went wrong: " in the mailbox's error list. Fall
  back to the server's text when the code is empty.
- The unibox contact rail opened by itself on lg+ screens, putting the
  contact form in front of every thread the reader opened. It now starts
  closed at every width and opens from the header toggle.

internal/client/smtpimap/imap/err.go

@@ -21,7 +21,14 @@ func (c *Client) handleError(err error) *errx.MailError {
 		case imap.ResponseCodeAuthorizationFailed:
 			return errx.ErrMailAuthorizationFailed
 		default:
-			return errx.ErrMailUnknownImapError(string(imapErr.Code))
+			// A NO/BAD without a response code (Gmail's "NO System Error")
+			// has only its text; an empty code rendered as "Something went
+			// wrong: " in the mailbox's error list.
+			detail := string(imapErr.Code)
+			if detail == "" {
+				detail = imapErr.Text
+			}
+			return errx.ErrMailUnknownImapError(detail)
 		}
 	}
 

web/src/components/app/unibox/ThreadView.tsx

@@ -160,14 +160,11 @@ export function ThreadView({ threadId, emailId }: ThreadViewProps) {
   const threadLabels = useThreadLabels(threadId);
   const [labelMenuOpen, setLabelMenuOpen] = React.useState(false);
 
-  // CRM context rail (right side). Open by default on wide screens (lg+),
-  // where it renders as a static rail. Below lg it renders as an overlay
-  // drawer, so it starts closed and is opened from the header toggle.
-  const [crmOpen, setCrmOpen] = React.useState(
-    () =>
-      typeof window !== "undefined" &&
-      window.matchMedia("(min-width: 1024px)").matches,
-  );
+  // CRM context rail (right side). Starts closed at every width and is
+  // opened from the header toggle: on wide screens it renders as a static
+  // rail, below lg as an overlay drawer. It used to open by itself on lg+,
+  // which put the contact form in front of every thread the reader opened.
+  const [crmOpen, setCrmOpen] = React.useState(false);
 
   // `c` opens the label menu while a thread is open — ignored while
   // typing into the composer / any input so it never eats keystrokes.