refactor (almost) entire gui to split into multiple files

src/core/interface/dialogs/hoverrowdelegate.py

@@ -0,0 +1,19 @@
+from core.interface.dialogs.theme import _theme_colors
+from PySide6.QtWidgets import QStyledItemDelegate
+from PySide6 import QtWidgets
+
+class HoverRowDelegate(QStyledItemDelegate):
+
+    def paint(self, painter, option, index):
+        from core.interface.gui import MainWindow
+
+        opt = QtWidgets.QStyleOptionViewItem(option)
+        option.state &= ~QtWidgets.QStyle.StateFlag.State_HasFocus
+        option.state &= ~QtWidgets.QStyle.StateFlag.State_Selected
+
+        hovered_row = MainWindow._instance._hovered_row if MainWindow._instance else -1
+        if index.row() == hovered_row:
+            painter.save()
+            painter.fillRect(option.rect, _theme_colors()["hover"])
+            painter.restore()
+        super().paint(painter, opt, index)