Added new tools to changelogs

Author: veler

src/app/dev/DevToys.Blazor/Assets/changelog.md

@@ -2,6 +2,7 @@ CAREFUL, This file will be parsed at build time and run time. Make sure to keep
 Changelog in Debian have to keep a strict format that we're applying here. It consist in starting each line
 with two spaces following by a star and a space. The current file should respect this format.
 ---
+  * Two new tools are available through "Manage extensions": JSON to C# Converter, and RESX Translator
   * DevToys on macOS is now signed
   * Improved font rendering on Windows and Linux
   * Slightly improved startup time