docs(journal): Session-Log zu P2P-Guards, FilePicker-Fixes und Tests hinzugefügt

Signed-off-by: Stefan Mogeritsch <stefan.mo.co@gmail.com>

frontend/core/design-system/src/jvmMain/kotlin/at/mocode/frontend/core/designsystem/components/MsFilePicker.jvm.kt

@@ -78,6 +78,9 @@ actual fun MsFilePicker(
         SwingUtilities.invokeLater {
           val chooser = JFileChooser().apply {
             isMultiSelectionEnabled = false
+            isAcceptAllFileFilterUsed = false
+            approveButtonText = "Auswählen"
+            
             // Initiales Verzeichnis/Pfad
             run {
               val home = File(System.getProperty("user.home") ?: ".")
@@ -108,7 +111,7 @@ actual fun MsFilePicker(
             }
           }
 
-          val result = chooser.showDialog(null, "Auswählen")
+          val result = chooser.showOpenDialog(null)
           if (result == JFileChooser.APPROVE_OPTION) {
             val chosen = chooser.selectedFile
             if (directoryOnly) {