cosmic-edit: add manifest

recipes/gui/cosmic-edit/manifest

+name=COSMIC Text Editor
+binary=/bin/cosmic-edit
+icon=/ui/icons/apps/accessories-text-editor.png
+accept=*.asm
+accept=*.conf
+accept=*.html
+accept=*.ion
+accept=*.list
+accept=*.lua
+accept=*.md
+accept=*.rc
+accept=*.rs
+accept=*.sh
+accept=*.toml
+accept=*.txt
+author=Jeremy Soller
+description=COSMIC Text Editor

recipes/gui/cosmic-edit/recipe.toml

@@ -6,4 +6,6 @@ branch = "master_jammy"
 template = "custom"
 script = """
 cookbook_cargo --no-default-features
+mkdir -pv "${COOKBOOK_STAGE}/ui/apps"
+cp -v "${COOKBOOK_RECIPE}/manifest" "${COOKBOOK_STAGE}/ui/apps/cosmic-edit"
 """