fix appdata issuse

- Add missing launchable tag
- Remove the none oars ratings

data/com.github.babluboy.bookworm.appdata.xml.in

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <!-- Copyright 2017 Siddhartha Das <bablu.boy@gmail.com> -->
-<component type="desktop">
+<component type="desktop-application">
   <id>com.github.babluboy.bookworm</id>
   <metadata_license>CC0-1.0</metadata_license>
   <project_group>bookworm</project_group>
@@ -115,33 +115,6 @@
      <value key="x-appcenter-suggested-price">2</value>
      <value key="x-appcenter-stripe">pk_live_i8u8qHGI7MRdJLNAdPYmewBc</value>
   </custom>
-  <content_rating type="oars-1.1">
-    <content_attribute id="violence-cartoon">none</content_attribute>
-    <content_attribute id="violence-fantasy">none</content_attribute>
-    <content_attribute id="violence-realistic">none</content_attribute>
-    <content_attribute id="violence-bloodshed">none</content_attribute>
-    <content_attribute id="violence-sexual">none</content_attribute>
-    <content_attribute id="violence-desecration">none</content_attribute>
-    <content_attribute id="violence-slavery">none</content_attribute>
-    <content_attribute id="violence-worship">none</content_attribute>
-    <content_attribute id="drugs-alcohol">none</content_attribute>
-    <content_attribute id="drugs-narcotics">none</content_attribute>
-    <content_attribute id="drugs-tobacco">none</content_attribute>
-    <content_attribute id="sex-nudity">none</content_attribute>
-    <content_attribute id="sex-themes">none</content_attribute>
-    <content_attribute id="sex-homosexuality">none</content_attribute>
-    <content_attribute id="sex-prostitution">none</content_attribute>
-    <content_attribute id="sex-adultery">none</content_attribute>
-    <content_attribute id="sex-appearance">none</content_attribute>
-    <content_attribute id="language-profanity">none</content_attribute>
-    <content_attribute id="language-humor">none</content_attribute>
-    <content_attribute id="language-discrimination">none</content_attribute>
-    <content_attribute id="social-chat">none</content_attribute>
-    <content_attribute id="social-info">none</content_attribute>
-    <content_attribute id="social-audio">none</content_attribute>
-    <content_attribute id="social-location">none</content_attribute>
-    <content_attribute id="social-contacts">none</content_attribute>
-    <content_attribute id="money-purchasing">none</content_attribute>
-    <content_attribute id="money-gambling">none</content_attribute>
-  </content_rating>
-</component>
+  <launchable type="desktop-id">com.github.babluboy.bookworm.desktop</launchable>
+  <content_rating type="oars-1.1"/>
+ </component>