introduce set_stock_translation and remove call to DC_EVENT_GET_STRING

src/context.rs

@@ -63,6 +63,7 @@ pub struct Context {
     pub running_state: Arc<RwLock<RunningState>>,
     /// Mutex to avoid generating the key for the user more than once.
     pub generating_key_mutex: Mutex<()>,
+    pub translated_stockstrings: HashMap<usize, String>,
 }
 
 #[derive(Debug, PartialEq, Eq)]
@@ -145,6 +146,7 @@ impl Context {
             probe_imap_network: Arc::new(RwLock::new(false)),
             perform_inbox_jobs_needed: Arc::new(RwLock::new(false)),
             generating_key_mutex: Mutex::new(()),
+            translated_stockstrings: HashMap::new(),
         };
 
         ensure!(