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, 3 insertions, 4 deletions

diff --git a/src/ui/handlers/conversation.rs b/src/ui/handlers/conversation.rs
index f1bb319..2ff090c 100644
--- a/src/ui/handlers/conversation.rs
+++ b/src/ui/handlers/conversation.rs
@@ -4,8 +4,7 @@ use axum::{
 };
 
 use crate::{
-    app::App,
-    conversation::{self, app},
+    conversation::{self, app, app::Conversations},
     error::Internal,
     token::extract::Identity,
     ui::{
@@ -15,12 +14,12 @@ use crate::{
 };
 
 pub async fn handler(
-    State(app): State<App>,
+    State(conversations): State<Conversations>,
     identity: Option<Identity>,
     Path(conversation): Path<conversation::Id>,
 ) -> Result<Asset, Error> {
     let _ = identity.ok_or(Error::NotLoggedIn)?;
-    app.conversations()
+    conversations
         .get(&conversation)
         .await
         .map_err(Error::from)?;