MAINT: Update desktop and appdata files

Updated the mumble.desktop and mumble.appdata.xml files to meet the most
recent information and also meet the more modern standards that have
been established.

They now pass validation by appstreamcli.

scripts/org.mumble_voip.mumble.appdata.xml

@@ -0,0 +1,31 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop-application">
+	<id>org.mumble_voip.mumble</id>
+	<metadata_license>CC0-1.0</metadata_license>
+	<project_license>BSD-3-Clause</project_license>
+	<name>Mumble</name>
+	<summary>Voice Chat Software</summary>
+
+	<description>
+		<p>
+				Mumble is an open source, low-latency, high quality voice chat software.
+		</p>
+	</description>
+
+	<launchable type="desktop-id">org.mumble_voip.mumble.desktop</launchable>
+
+	<screenshots>
+		<screenshot type="default">
+			<caption>Light Theme</caption>
+			<image>https://screenshots.debian.net/screenshots/000/017/126/large.png</image>
+		</screenshot>
+		<screenshot>
+			<caption>Dark Theme</caption>
+			<image>https://screenshots.debian.net/screenshots/000/017/125/large.png</image>
+		</screenshot>
+	</screenshots>
+
+	<url type="homepage">https://mumble.info</url>
+
+	<developer_name>The Mumble Dev-Team</developer_name>
+</component>

scripts/mumble.desktop → scripts/org.mumble_voip.mumble.desktop

@@ -3,11 +3,9 @@ Name=Mumble
 GenericName=Voice Chat
 GenericName[de]=Sprachkonferenz
 GenericName[fr]=Chat vocal
-GenericName[tr]=Sesle Sohbet
-Comment=A low-latency, high quality voice chat program for gaming
-Comment[de]=Ein Sprachkonferenzprogramm mit niedriger Latenz und hoher Qualität für Spiele
-Comment[fr]=Un logiciel de chat vocal de haute qualité et de faible latence pour les jeux
-Comment[tr]=Oyunlar için yüksek kaliteli ve düşük gecikmeli sesle sohbet programı
+Comment=An open source low-latency, high quality voice chat program
+Comment[de]=Ein Open Source Sprachkonferenzprogramm mit niedriger Latenz und hoher Qualität
+Comment[fr]=Un logiciel de chat vocal de haute qualité et de faible latence
 Exec=mumble %u
 Icon=mumble
 Terminal=false

src/CMakeLists.txt

@@ -167,8 +167,8 @@ if(client)
 	add_subdirectory(mumble)
 
 	if(UNIX AND NOT APPLE)
-		install(FILES "${CMAKE_SOURCE_DIR}/scripts/mumble.appdata.xml" DESTINATION "share/metainfo")
-		install(FILES "${CMAKE_SOURCE_DIR}/scripts/mumble.desktop" DESTINATION "share/applications")
+		install(FILES "${CMAKE_SOURCE_DIR}/scripts/org.mumble_voip.mumble.appdata.xml" DESTINATION "share/metainfo")
+		install(FILES "${CMAKE_SOURCE_DIR}/scripts/org.mumble_voip.mumble.desktop" DESTINATION "share/applications")
 		install(FILES "${CMAKE_SOURCE_DIR}/icons/mumble.svg" DESTINATION "share/icons/hicolor/scalable/apps")
 	endif()
 endif()