update flatpak app id and add migration code (#12879)

* update flatpak app id and add migration code

* tweak some text

scripts/flatpak/com.orcaslicer.OrcaSlicer.metainfo.xml

@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop">
+    <id>com.orcaslicer.OrcaSlicer</id>
+    <launchable type="desktop-id">com.orcaslicer.OrcaSlicer.desktop</launchable>
+    <provides>
+        <id>com.orcaslicer.OrcaSlicer.desktop</id>
+    </provides>
+    <name>OrcaSlicer</name>
+    <summary>Get even more perfect prints!</summary>
+    <developer id="com.orcaslicer">
+        <name>SoftFever</name>
+    </developer>
+    <url type="homepage">https://www.orcaslicer.com</url>
+    <url type="help">https://www.orcaslicer.com/wiki</url>
+    <url type="bugtracker">https://github.com/OrcaSlicer/OrcaSlicer/issues/</url>
+    <url type="donation">https://ko-fi.com/SoftFever</url>
+    <url type="vcs-browser">https://github.com/OrcaSlicer/OrcaSlicer</url>
+    <metadata_license>0BSD</metadata_license>
+    <project_license>AGPL-3.0-only</project_license>
+    <content_rating type="oars-1.1" />
+    <requires>
+        <display_length compare="gt">768</display_length>
+    </requires>
+    <recommends>
+        <control>keyboard</control>
+        <control>pointing</control>
+    </recommends>
+    <screenshots>
+        <screenshot type="default">
+            <image>https://raw.githubusercontent.com/OrcaSlicer/OrcaSlicer/main/scripts/flatpak/images/1.png</image>
+            <caption>A model ready to be sliced on a buildplate.</caption>
+        </screenshot>
+        <screenshot>
+            <image>https://raw.githubusercontent.com/OrcaSlicer/OrcaSlicer/main/scripts/flatpak/images/2.png</image>
+            <caption>A calibration test ready to be printed out.</caption>
+        </screenshot>
+    </screenshots>
+    <description>
+        <p>OrcaSlicer is a powerful, free and open-source 3D printer slicer with cutting-edge
+            features for FDM printing. It supports a wide range of printers from manufacturers
+            including Bambu Lab, Prusa, Voron, Creality, and many more.</p>
+        <p>Key features include advanced calibration tools, adaptive layer heights, tree supports,
+            multi-material support, and an intuitive interface for both beginners and experts.
+            OrcaSlicer also provides built-in network printing capabilities for compatible printers.</p>
+        <p>Originally forked from Bambu Studio and PrusaSlicer, OrcaSlicer builds on a strong
+            foundation with community-driven improvements and optimizations for print quality
+            and reliability.</p>
+    </description>
+    <branding>
+        <color type="primary" scheme_preference="light">#009688</color>
+        <color type="primary" scheme_preference="dark">#00695C</color>
+    </branding>
+    <releases>
+        <release version="2.3.2-rc" date="2025-03-01">
+            <url type="details">https://github.com/OrcaSlicer/OrcaSlicer/releases/tag/v2.3.2-rc</url>
+            <description>
+                <p>See the release page for detailed changelog.</p>
+            </description>
+        </release>
+    </releases>
+</component>