improve UI styles

- Added album path management in PhotoModel for better photo loading.
- Updated responsive QLabel to handle scaling more effectively.
- Introduced ClickableIconWidget for better icon interaction in the UI.
- Added new color definitions for blue and accent blue.
- Enhanced the AppTabWidget styles to adapt to dark mode.
- Replaced QLineEdit with ZLineEdit for consistent styling.
- Improved the SSH terminal widget with better error handling and process management.
- Refactored ToolboxWidget methods for device management.
- Adjusted margins and styles in various widgets for improved layout.

src/zlineedit.cpp

@@ -0,0 +1,36 @@
+#include "zlineedit.h"
+
+ZLineEdit::ZLineEdit(QWidget *parent) : QLineEdit(parent) { setupStyles(); }
+
+ZLineEdit::ZLineEdit(const QString &text, QWidget *parent)
+    : QLineEdit(text, parent)
+{
+    setupStyles();
+}
+
+void ZLineEdit::setupStyles()
+{
+    updateStyles();
+
+    // Connect to palette changes for dynamic theme updates
+    connect(qApp, &QApplication::paletteChanged, this,
+            &ZLineEdit::updateStyles);
+}
+
+void ZLineEdit::updateStyles()
+{
+    setStyleSheet("QLineEdit { "
+                  "    border: 2px solid " +
+                  qApp->palette().color(QPalette::Midlight).name() +
+                  "; "
+                  "    border-radius: 6px; "
+                  "    padding: 8px 12px; "
+                  "    font-size: 14px; "
+                  "} "
+                  "QLineEdit:focus { "
+                  "    border: 2px solid " +
+                  qApp->palette().color(QPalette::Highlight).name() +
+                  "; "
+                  "    outline: none; "
+                  "}");
+}