Fixes GTK4 Layer Shell and Ollama integration issues

Addresses multiple issues related to GTK4 Layer Shell initialization and Ollama integration.

- Reorders initialization to ensure the layer shell is set up before window properties.
- Adds error detection for layer shell initialization failures.
- Implements a focus event handler to prevent focus-out warnings.
- Introduces a launcher script to activate the virtual environment, force native Wayland, and preload the GTK4 Layer Shell library.
- Warns users of incorrect GDK_BACKEND settings.
- Updates the Ollama client to handle responses from both older and newer versions of the Ollama SDK.

These changes improve the application's stability, compatibility, and functionality on Wayland systems.

inspiration/quickcenter/widgets/sliders.py

@@ -0,0 +1,94 @@
+import asyncio
+from gi.repository import GLib
+from ignis import widgets
+from ignis.services.audio import AudioService
+from ignis.services.backlight import BacklightService
+from ignis.window_manager import WindowManager
+
+audio = AudioService.get_default()
+backlight = BacklightService.get_default()
+window_manager = WindowManager.get_default()
+
+
+class QuickSliders(widgets.Box):
+    def __init__(self):
+        children = []
+        if audio.speaker:
+            self.volume_slider = widgets.Scale(
+                min=0,
+                max=100,
+                step=1.0,
+                on_change=self.on_volume_changed,
+                hexpand=True,
+            )
+            volume_box = widgets.Box(
+                css_classes=["m3-slider"],
+                child=[
+                    widgets.Label(label="volume_up", css_classes=["m3-icon"]),
+                    self.volume_slider,
+                ],
+                spacing=12,
+            )
+            children.append(volume_box)
+
+        if backlight.available:
+            self.backlight_slider = widgets.Scale(
+                min=0,
+                max=100,
+                step=1.0,
+                on_change=self.on_backlight_changed,
+                hexpand=True,
+            )
+            backlight_box = widgets.Box(
+                css_classes=["m3-slider"],
+                child=[
+                    widgets.Label(label="brightness_6", css_classes=["m3-icon"]),
+                    self.backlight_slider,
+                ],
+                spacing=12,
+            )
+            children.append(backlight_box)
+
+        super().__init__(
+            css_classes=["quick-sliders-container"],
+            hexpand=True,
+            halign="fill",
+            spacing=2,
+            vertical=True,
+            child=children,
+        )
+
+        if audio.speaker:
+            audio.speaker.connect("notify::volume", self._on_volume_changed)
+            audio.speaker.connect("notify::is-muted", self._on_volume_changed)
+        if backlight.available:
+            backlight.connect("notify::brightness", self._on_brightness_changed)
+
+    def _on_volume_changed(self, stream, *_):
+        if stream.is_muted:
+            self.volume_slider.set_value(0)
+        else:
+            self.volume_slider.set_value(stream.volume)
+
+    def _on_brightness_changed(self, backlight, *_):
+        self.backlight_slider.set_value(
+            (backlight.brightness / backlight.max_brightness) * 100
+        )
+
+    def on_volume_changed(self, slider):
+        value = slider.get_value()
+        self.set_suppress_osd_flag()
+        audio.speaker.volume = value
+
+    def on_backlight_changed(self, slider):
+        value = slider.get_value()
+        self.set_suppress_osd_flag()
+        backlight.brightness = int((value / 100) * backlight.max_brightness)
+
+    def set_suppress_osd_flag(self):
+        window_manager.suppress_osd = True
+        asyncio.create_task(self.reset_suppress_osd_flag())
+
+    async def reset_suppress_osd_flag(self):
+        await asyncio.sleep(0.1)
+        window_manager.suppress_osd = False