Convert the `Conversations` component into a freestanding struct.

Unlike the previous example, this involves cloning an event broadcaster, as well. This is, per the documentation, how the type may be used. From <https://docs.rs/tokio/latest/tokio/sync/broadcast/fn.channel.html>:

> The Sender can be cloned to send to the same channel from multiple points in the process or it can be used concurrently from an `Arc`.

The language is less firm than the language sqlx uses for its pool, but the intent is clear enough, and it works in practice.

1 files changed, 8 insertions, 2 deletions

diff --git a/src/app.rs b/src/app.rs
index e33ee39..3f3885a 100644
--- a/src/app.rs
+++ b/src/app.rs
@@ -38,8 +38,8 @@ impl App {
         Boot::new(self.db.clone())
     }
 
-    pub const fn conversations(&self) -> Conversations<'_> {
-        Conversations::new(&self.db, &self.events)
+    pub fn conversations(&self) -> Conversations {
+        Conversations::new(self.db.clone(), self.events.clone())
     }
 
     pub const fn events(&self) -> Events<'_> {
@@ -77,3 +77,9 @@ impl FromRef<App> for Boot {
         app.boot()
     }
 }
+
+impl FromRef<App> for Conversations {
+    fn from_ref(app: &App) -> Self {
+        app.conversations()
+    }
+}