launcher: the account list follows changes made outside the window

accounts.json was read once at start-up, so an offline name added or
forgotten through the CLI or another window left the running window
without the name's row (and its Forget button) until relaunch. Page
switches and opening the account chip's menu read it again, as the
game's made-up name already was.

Co-Authored-By: Devin <158243242+devin-ai-integration[bot]@users.noreply.github.com>

launcher/src/main.rs

@@ -481,8 +481,10 @@ impl Launcher {
     }
 
     fn go(&mut self, page: Page) {
-        // The game may have made up a name since: read it again (a small file, once a switch).
+        // The game may have made up a name since, and the CLI or another window may have
+        // changed the accounts: read them again (small files, once a switch).
         self.offline_name = offline_name();
+        self.accounts = Accounts::load();
         if page != self.page {
             self.page = page;
             self.switches += 1;
@@ -1692,6 +1694,10 @@ impl Launcher {
             )
             .on_click(cx.listener(|this, _: &ClickEvent, _, cx| {
                 this.account_menu = !this.account_menu;
+                if this.account_menu {
+                    // Who can play may have changed elsewhere since the window opened.
+                    this.accounts = Accounts::load();
+                }
                 cx.notify();
             }));
         let account = div()