Add network connect call to extensions

This commit fixes a regression on the highlighter and share extensions,
which was caused by a change in the code's architecture, which required
the network manager to be initialized.

Fixes: 8d48f77d95138c93ed93989989fa930b61c2d6fb
Closes: https://github.com/damus-io/damus/issues/2955
Signed-off-by: Daniel D’Aquino <daniel@daquino.me>

share extension/ShareViewController.swift

@@ -250,6 +250,7 @@ struct ShareExtensionView: View {
             return false
         }
         state = DamusState(keypair: keypair)
+        state?.nostrNetwork.connect()
         return true
     }