Add TalkType - AI-powered speech-to-text for Linux Wayland

TalkType is a privacy-focused speech recognition application for Linux Wayland systems.

Features:
- Privacy-first: All processing happens locally using OpenAI's Faster-Whisper AI
- Press-and-hold dictation with configurable hotkey (default F8)
- Intelligent punctuation and voice commands
- Auto-punctuation and auto-spacing
- CPU and GPU support with automatic CUDA detection
- Multiple model sizes (tiny, small, medium, large)
- System tray integration

Technical Details:
- Built for Ubuntu 22.04+ (glibc 2.35)
- Size: 892MB (optimized, under 1GB)
- License: MIT
- Desktop ID: io.github.ronb1964.TalkType
- AppStream metadata included and validated

Tested on Nobara Linux (Fedora-based) with Wayland.
Download: https://github.com/ronb1964/TalkType/releases/download/v0.3.7/TalkType-v0.3.7-x86_64.AppImage

Author: ronb1964

database/TalkType/talktype.json

@@ -0,0 +1,22 @@
+{
+  "name": "TalkType",
+  "description": "AI-powered speech recognition and dictation for Wayland using OpenAI's Faster-Whisper",
+  "categories": ["Utility", "AudioVideo", "Audio", "Accessibility"],
+  "authors": [
+    {
+      "name": "ronb1964",
+      "url": "https://github.com/ronb1964"
+    }
+  ],
+  "license": "MIT",
+  "links": [
+    {
+      "type": "GitHub",
+      "url": "https://github.com/ronb1964/TalkType"
+    }
+  ],
+  "icons": [
+    "io.github.ronb1964.TalkType"
+  ],
+  "screenshots": []
+}