Small reliability fixes

app/src/main/java/io/xpipe/app/browser/file/BrowserQuickAccessContextMenu.java

@@ -79,7 +79,7 @@ public class BrowserQuickAccessContextMenu extends ContextMenu {
                 getItems().addAll(r.getItems());
 
                 // Prevent NPE in show()
-                if (getScene() == null) {
+                if (getScene() == null || anchor == null) {
                     return;
                 }
                 show(anchor, Side.RIGHT, 0, 0);

app/src/main/java/io/xpipe/app/core/AppTheme.java

@@ -113,6 +113,9 @@ public class AppTheme {
                     }
                 });
             });
+        } catch (UnsupportedOperationException ex) {
+            // The platform preferences are sometimes not initialized yet
+            ErrorEvent.fromThrowable(ex).expected().omit().handle();
         } catch (Throwable t) {
             ErrorEvent.fromThrowable(t).omit().handle();
         }
@@ -136,6 +139,9 @@ public class AppTheme {
             } else {
                 AppPrefs.get().theme.setValue(Theme.getDefaultLightTheme());
             }
+        } catch (UnsupportedOperationException ex) {
+            // The platform preferences are sometimes not initialized yet
+            ErrorEvent.fromThrowable(ex).expected().omit().handle();
         } catch (Exception ex) {
             // The color scheme query can fail if the toolkit is not initialized properly
             AppPrefs.get().theme.setValue(Theme.getDefaultLightTheme());

app/src/main/java/io/xpipe/app/core/check/AppUserDirectoryCheck.java

@@ -15,14 +15,15 @@ public class AppUserDirectoryCheck {
             Files.createDirectories(dataDirectory);
             var testDirectory = dataDirectory.resolve("permissions_check");
             Files.createDirectories(testDirectory);
+            if (!Files.exists(testDirectory)) {
+                throw new IOException("Directory creation in user home directory failed silently");
+            }
             Files.delete(testDirectory);
             // if (true) throw new IOException();
         } catch (IOException e) {
-            ErrorEvent.fromThrowable(
+            ErrorEvent.fromThrowable("Unable to access directory " + dataDirectory
-                            new IOException(
-                                    "Unable to access directory " + dataDirectory
                             + ". Please make sure that you have the appropriate permissions and no Antivirus program is blocking the access. "
-                                            + "In case you use cloud storage, verify that your cloud storage is working and you are logged in."))
+                            + "In case you use cloud storage, verify that your cloud storage is working and you are logged in.", e)
                     .term()
                     .expected()
                     .handle();