DragonX compatibility: crash fixes, reorg detection, server failover, sync perf

- Fix Rust FFI panics with catch_unwind wrappers and safe CString handling
- Handle poisoned mutex/RwLock from prior panics instead of crashing
- Add stuck sync detection (10s stall threshold) and chain reorg user prompt
- Add "Skip Verification" button to seed phrase wizard
- Update payment URIs from hush: to drgx:
- Update branding strings throughout UI
- Add all 6 lite servers (lite, lite1-5.dragonx.is) with random selection
- Add server connectivity probing to skip unreachable servers
- Reuse Tokio runtime across block fetch batches to reduce sync overhead
- Update Cargo.lock dependencies

src/memoedit.h

@@ -1,27 +1,27 @@
-// Copyright 2019-2024 The Hush developers
-// Released under the GPLv3
-#ifndef MEMOEDIT_H
-#define MEMOEDIT_H
-
-#include "precompiled.h"
-
-class MemoEdit : public QPlainTextEdit {
-
-	Q_OBJECT
-
-public:
-    MemoEdit(QWidget* parent);
-
-    void setMaxLen(int len);
-    void setLenDisplayLabel(QLabel* label);
-    void setAcceptButton(QPushButton* button);
-    void includeReplyTo(QString replyToAddress);
-    void updateDisplay();
-
-private:
-    int             maxlen           = 512;
-    QLabel*         lenDisplayLabel  = nullptr;
-    QPushButton*    acceptButton     = nullptr;
-};
-
-#endif // MEMOEDIT_H
+// Copyright 2019-2024 The Hush developers
+// Released under the GPLv3
+#ifndef MEMOEDIT_H
+#define MEMOEDIT_H
+
+#include "precompiled.h"
+
+class MemoEdit : public QPlainTextEdit {
+
+	Q_OBJECT
+
+public:
+    MemoEdit(QWidget* parent);
+
+    void setMaxLen(int len);
+    void setLenDisplayLabel(QLabel* label);
+    void setAcceptButton(QPushButton* button);
+    void includeReplyTo(QString replyToAddress);
+    void updateDisplay();
+
+private:
+    int             maxlen           = 512;
+    QLabel*         lenDisplayLabel  = nullptr;
+    QPushButton*    acceptButton     = nullptr;
+};
+
+#endif // MEMOEDIT_H