Refine dialog text

src/main/resources/fxml/hub_no_keychain.fxml

@@ -12,6 +12,7 @@
 <?import javafx.scene.layout.StackPane?>
 <?import javafx.scene.layout.VBox?>
 <?import javafx.scene.shape.Circle?>
+<?import org.cryptomator.ui.controls.FormattedLabel?>
 <HBox xmlns:fx="http://javafx.com/fxml"
 	  xmlns="http://javafx.com/javafx"
 	  fx:controller="org.cryptomator.ui.keyloading.hub.NoKeychainController"
@@ -41,7 +42,7 @@
 				</padding>
 			</Label>
 
-			<Label text="%hub.noKeychain.description" wrapText="true" textAlignment="LEFT"/>
+			<FormattedLabel format="%hub.noKeychain.description" arg1="%preferences.general.keychainBackend" wrapText="true" textAlignment="LEFT"/>
 
 			<Region VBox.vgrow="ALWAYS" minHeight="18"/>
 			<ButtonBar buttonMinWidth="120" buttonOrder="+CI">

src/main/resources/i18n/strings.properties

@@ -130,8 +130,8 @@ unlock.error.invalidMountPoint.notExisting=Mount point "%s" is not a directory,
 unlock.error.invalidMountPoint.existing=Mount point "%s" already exists or parent folder is missing.
 unlock.error.invalidMountPoint.driveLetterOccupied=Drive Letter "%s" is already in use.
 ## Hub
-hub.noKeychain.message=No Keychain found
-hub.noKeychain.description=In order to open Hub vaults, you have to enable "TODO" and select a keychain.
+hub.noKeychain.message=Unable to access device key
+hub.noKeychain.description=In order to unlock Hub vaults, a device key is required, which is secured using a keychain. To proceed, enable “%s” and select a keychain in the preferences.
 hub.noKeychain.openBtn=Open Preferences
 ### Waiting
 hub.auth.message=Waiting for authentication…