Added Kiwix icon for .ZIM files on OSX

src/macosx/Info.plist

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple Computer//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
+<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
 <plist version="1.0">
 <dict>
 	<key>CFBundleExecutable</key>
@@ -20,7 +20,6 @@
 	<string>0.3</string>
 	<key>CFBundleSignature</key>
 	<string>????</string>
-		<!--only useful if your app handle urls-->
 	<key>CFBundleURLTypes</key>
 	<array>
 		<dict>
@@ -39,20 +38,18 @@
 	<key>CFBundleDocumentTypes</key>
 	<array>
 		<dict>
+			<key>CFBundleTypeIconFile</key>
+			<string>kiwix-ZIM.icns</string>
+			<key>LSHandlerRank</key>
+			<string>Owner</string>
 			<key>CFBundleTypeName</key>
-		        <string>ZIM file</string>
+			<string>OpenZIM Content File</string>
 			<key>CFBundleTypeExtensions</key>
 			<array>
 				<string>zim</string>
-		            <string>zimaa</string>
 			</array>
 			<key>CFBundleTypeRole</key>
 			<string>Viewer</string>
-		        <key>CFBundleTypeMIMETypes</key>
-		        <array>
-		            <string>text/xml</string>
-		            <string>data</string>
-		        </array>
 		</dict>
 	</array>
 </dict>