Add flatpak metadata

Author: VoxelCubes

flatpak/io.github.voxelcubes.deepqt.appdata.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+  <id>io.github.voxelcubes.deepqt</id>
+  <launchable type="desktop-id">io.github.voxelcubes.deepqt.desktop</launchable>
+  <name>DeepQt</name>
+  <summary>Harness the power of the DeepL API with this friendly user interface</summary>
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>GPL-3.0-or-later</project_license>
+  <url type="homepage">https://github.com/VoxelCubes/DeepQt</url>
+  <description>
+    <p>DeepQt is a user-friendly application that harnesses the power of the DeepL API for translation purposes. 
+    With a clean interface and support for batch processing of plain text files and EPUB books, 
+    DeepQt makes it easy to translate texts efficiently and effectively.</p>
+    
+    <p>DeepQt also features higher-level glossaries allowing you to make replacements before translation, 
+    to ensure consistnecy in terms. These can even be applied without translating anything!</p> 
+    
+    <p>To use DeepQt's translation features, you will need a DeepL API license, either free or pro.</p>
+  </description>
+  <screenshots>
+    <!-- Replace the URL below with a screenshot of your application -->
+    <screenshot type="default">
+      <image>https://raw.githubusercontent.com/VoxelCubes/DeepQt/master/media/example_screenshot.png</image>
+    </screenshot>
+  </screenshots>
+  <releases>
+    <release version="1.1.7" date="2023-04-23"/>
+  </releases>
+  <content_rating type="oars-1.1" />
+  <developer_name>VoxelCubes</developer_name>
+  <categories>
+    <category>Utility</category>
+    <category>Translation</category>
+  </categories>
+  <provides>
+    <binary>deepqt</binary>
+  </provides>
+</component>