rework documentation launch, use generated files instead of pure mkdocs, add quiet handler for use with logging in terminal

src/backend/documentation_thread.py

@@ -1,11 +1,23 @@
-from PySide6.QtCore import QThread
-from src.utils.documentation import run_mkdocs
+from PySide6.QtCore import QThread, Slot
+from src.utils.documentation import website, QuietHandler
+from wsgiref.simple_server import make_server
 
 
 class DocumentationThread(QThread):
     def __init__(self):
         super().__init__()
+        self._server = None  # store server so we can shut it down
 
     def run(self):
         # launch_documentation()
-        run_mkdocs()
+        self._server = make_server(
+            "localhost", 8000, website(), handler_class=QuietHandler
+        )
+        while not self.isInterruptionRequested():
+            self._server.handle_request()
+
+    @Slot()  # slot you can connect to aboutToQuit
+    def stop(self):
+        self.requestInterruption()  # ask the loop above to exit
+        if self._server:
+            self._server.shutdown()  # unblock handle_request()