Remove restrictions of vault name filed to only contain alpha numeric characters

main/ui/src/main/resources/fxml/vault_options_general.fxml

@@ -2,11 +2,11 @@
 
 <?import javafx.geometry.Insets?>
 <?import javafx.scene.control.CheckBox?>
-<?import javafx.scene.layout.VBox?>
 <?import javafx.scene.control.ChoiceBox?>
-<?import javafx.scene.layout.HBox?>
 <?import javafx.scene.control.Label?>
-<?import org.cryptomator.ui.controls.AlphanumericTextField?>
+<?import javafx.scene.control.TextField?>
+<?import javafx.scene.layout.HBox?>
+<?import javafx.scene.layout.VBox?>
 <VBox xmlns="http://javafx.com/javafx"
 	  xmlns:fx="http://javafx.com/fxml"
 	  fx:controller="org.cryptomator.ui.vaultoptions.GeneralVaultOptionsController"
@@ -17,7 +17,7 @@
 	<children>
 		<HBox spacing="6" alignment="CENTER_LEFT">
 			<Label text="%vaultOptions.general.vaultName"/>
-			<AlphanumericTextField fx:id="vaultName"/>
+			<TextField fx:id="vaultName"/>
 		</HBox>
 
 		<CheckBox text="%vaultOptions.general.unlockAfterStartup" fx:id="unlockOnStartupCheckbox"/>