Move QML Python stuff to its own subfolder

src/backend/theme_parser.py

@@ -57,7 +57,7 @@ def _process_lines(content: str) -> Generator[str, None, None]:
 def convert_to_qml(theme_content: str) -> str:
     lines  = [
         "import QtQuick 2.12",
-        'import "Base"',
+        'import "../Base"',
         "QtObject {",
         "    function hsluv(h, s, l, a) { return utils.hsluv(h, s, l, a) }",
         "    function hsl(h, s, l)      { return utils.hsl(h, s, l) }",

src/gui/PythonBridge/PythonBridge.qml

@@ -9,7 +9,7 @@ Python {
     property bool startupAnyAccountsSaved: false
     property var pendingCoroutines: ({})
 
-    property PythonEventHandlers eventHandlers: PythonEventHandlers {}
+    property EventHandlers eventHandlers: EventHandlers {}
 
 
     function newQmlFuture() {

src/gui/Window.qml

@@ -1,6 +1,7 @@
 import QtQuick 2.12
 import QtQuick.Controls 2.12
 import "Base"
+import "PythonBridge"
 
 ApplicationWindow {
     id: window