feat(chat): add explicit busy-send modes and recoverable queue (#1254)

Co-authored-by: m57 <41645758+Hy4ri@users.noreply.github.com>

app/src/main/java/com/m57/hermescontrol/data/ws/WsMethods.kt

@@ -11,6 +11,7 @@ object WsMethods {
     const val SESSION_CREATE = "session.create"
     const val SESSION_INTERRUPT = "session.interrupt"
     const val SESSION_REDIRECT = "session.redirect"
+    const val SESSION_STEER = "session.steer"
     const val SESSION_DELETE = "session.delete"
     const val SESSION_TITLE = "session.title"
     const val SESSION_BRANCH = "session.branch"