New app: posidon launcher

Closes fdroid/rfp#1309.

metadata/posidon.launcher.yml

@@ -0,0 +1,24 @@
+Categories:
+  - Theming
+License: GPL-3.0-or-later
+WebSite: https://posidon.io/launcher
+SourceCode: https://github.com/leoxshn/posidonLauncher
+IssueTracker: https://github.com/leoxshn/posidonLauncher/issues
+
+AutoName: posidon launcher
+
+RepoType: git
+Repo: https://github.com/leoxshn/posidonLauncher
+
+Builds:
+  - versionName: '1.12'
+    versionCode: 60
+    commit: '1.12'
+    subdir: app
+    gradle:
+      - yes
+
+AutoUpdateMode: Version %v
+UpdateCheckMode: Tags
+CurrentVersion: '1.12'
+CurrentVersionCode: 60