Define UIState config file

TODO.md

@@ -12,6 +12,7 @@
   - When qml syntax highlighting supports string interpolation, use them
 
 - Fixes
+  - Keyboard flicking against top/bottom edge
   - Don't strip user spacing in html
   - Past events loading (limit 100) freezes the GUI - need to move upsert func
     to a WorkerScript
@@ -19,6 +20,7 @@
   - Horrible performance for big rooms
 
 - UI
+  - When reduced, show the full-window sidepane instead of Default page
   - Adapt shortcuts flicking speed to font size and DPI
   - Show error box if uploading avatar fails
   - EditAccount page:

src/python/config_files.py

@@ -20,11 +20,14 @@ WRITE_LOCK = asyncio.Lock()
 class ConfigFile:
     backend:      Backend = field()
     filename:     str     = field()
+    use_data_dir: bool    = False
 
     @property
     def path(self) -> Path:
         # pylint: disable=no-member
-        return Path(self.backend.app.appdirs.user_config_dir) / self.filename
+        dirs = self.backend.app.appdirs
+        to = dirs.user_data_dir if self.use_data_dir else dirs.user_config_dir
+        return Path(to) / self.filename
 
 
 @dataclass
@@ -87,3 +90,15 @@ class UISettings(JSONConfigFile):
         return {
             "write_aliases": {}
         }
+
+
+@dataclass
+class UIState(JSONConfigFile):
+    filename:     str  = "ui-state.json"
+    use_data_dir: bool = True
+
+    async def default_data(self) -> JsonData:
+        return {
+            "page":           "Pages/Default.qml",
+            "pageProperties": {},
+        }

src/qml/UI.qml

@@ -15,7 +15,7 @@ Item {
         target: py
         onWillLoadAccounts: will => {
             pageStack.showPage(will ? "Default": "SignIn")
-            if (will) { initialRoomTimer.start() }
+            // if (will) { initialRoomTimer.start() }
         }
     }