Update docs for v2.10.0: AIS vessel tracking and Spy Stations

- Add AIS Vessel Tracking and Spy Stations to GitHub Pages site
- Update mode count from 10+ to 12+
- Add feature sections to FEATURES.md
- Update README.md features list and acknowledgments
- Add AIS-catcher and Priyom.org to acknowledgments
- Bump version to 2.10.0 in config.py
- Update CHANGELOG.md with new release notes

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

config.py

@@ -7,10 +7,20 @@ import os
 import sys
 
 # Application version
-VERSION = "2.9.5"
+VERSION = "2.10.0"
 
 # Changelog - latest release notes (shown on welcome screen)
 CHANGELOG = [
+    {
+        "version": "2.10.0",
+        "date": "January 2026",
+        "highlights": [
+            "AIS vessel tracking with real-time maritime map",
+            "Spy Stations database (number stations & diplomatic HF)",
+            "Multi-SDR support for AIS (RTL-SDR, HackRF, LimeSDR, etc.)",
+            "UI improvements: renamed modes for clarity",
+        ]
+    },
     {
         "version": "2.9.5",
         "date": "January 2026",