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.

run.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+# Launcher script for Niri AI Sidebar with proper Wayland configuration
+
+# Get the directory where this script is located
+SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
+
+# Activate virtual environment if it exists
+if [ -f "$SCRIPT_DIR/.venv/bin/activate" ]; then
+    source "$SCRIPT_DIR/.venv/bin/activate"
+fi
+
+# Force GTK to use native Wayland backend (not XWayland)
+export GDK_BACKEND=wayland
+
+# Preload GTK4 Layer Shell library to ensure proper initialization
+export LD_PRELOAD=/usr/lib/libgtk4-layer-shell.so
+
+# Run the application
+exec python3 "$SCRIPT_DIR/main.py" "$@"