📦 feat: add new metadata info for flatpak

Author: andrepg

data/io.github.andrepg.httpcodes.metainfo.xml.in

@@ -3,11 +3,13 @@
   <metadata_license>CC0-1.0</metadata_license>
 	<project_license>GPL-3.0-or-later</project_license>
 
-  <id>io.github.andrepg.httpcodes.desktop</id>
+  <id>io.github.andrepg.httpcodes</id>
   <name>HTTP Codes Handbook</name>
   <summary>A lightweight HTTP Codes handbook to research while offline</summary>
   <developer>io.github.andrepg</developer>
 
+  <launchable type="desktop-id">io.github.andrepg.http-codes.desktop</launchable>
+
 	<description>
 	  <p>
 	    A simple app to search and understand better HTTP Codes returned by