update: distinguish E2EE builds

done in the same way as TrayIcon

README.md

@@ -59,7 +59,7 @@ jfa-go is a user management app for [Jellyfin](https://github.com/jellyfin/jelly
 
 **Note**: `TrayIcon` builds include a tray icon to start/stop/restart, and an option to automatically start when you log-in to your computer. For Linux users, these builds depend on the `libappindicator3-1`/`libappindicator-gtk3`/`libappindicator` package for Debian/Ubuntu, Fedora, and Alpine respectively.
 
-`MatrixE2EE` builds (and Linux `TrayIcon` builds) include support for end-to-end encryption for the Matrix bots, but require the `libolm(-dev)` dependency. `.deb/.rpm/.apk` packages list this dependency, and docker images include it.
+`MatrixE2EE` builds (and Linux `TrayIcon` builds) include support for end-to-end encryption for the Matrix bot, but require the `libolm(-dev)` dependency. `.deb/.rpm/.apk` packages list this dependency, and docker images include it.
 
 ##### [Docker](https://hub.docker.com/r/hrfee/jfa-go)
 ```sh

updater.go

@@ -363,11 +363,17 @@ func getBuildName() string {
 	if arch == "" {
 		return ""
 	}
-	tray := ""
+	// Tray builds always have E2EE but aren't labelled as so,
+	// hence the specific ordering here.
+	subtype := ""
+	if MatrixE2EE() {
+		subtype = "MatrixE2EE_"
+	}
 	if TRAY {
-		tray = "TrayIcon_"
+		subtype = "TrayIcon_"
 	}
-	return tray + operatingSystem + "_" + arch
+
+	return subtype + operatingSystem + "_" + arch
 }
 
 func (ud *Updater) downloadInternal(assets *[]GHAsset, tag Tag) (applyUpdate ApplyUpdate, status int, err error) {