fix(@desktop/profile): changing language does not change it in UI

A call to the init of the language service was missing.
Calling it during boot process reoslves the bug.

fixes #4104

src/app/boot/app_controller.nim

@@ -281,6 +281,7 @@ proc load(self: AppController) =
   self.providerService.init()
   self.walletAccountService.init()
   self.transactionService.init()
+  self.languageService.init()
 
   # other global instances
   self.buildAndRegisterLocalAccountSensitiveSettings()