chore(shell): change schema property name `command` to `cmd` (#1069)

* chore: fix shell plugin `command` property in schema

* chore: add changelog

.changes/shell-fix-schema-command-property-name.md

@@ -0,0 +1,5 @@
+---
+"shell": "patch"
+---
+
+Change shell's schema property name `command` to `cmd`.

plugins/shell/src/scope_entry.rs

@@ -22,6 +22,7 @@ pub struct Entry {
     /// `$TEMPLATE`, `$VIDEO`, `$RESOURCE`, `$APP`, `$LOG`, `$TEMP`, `$APPCONFIG`, `$APPDATA`,
     /// `$APPLOCALDATA`, `$APPCACHE`, `$APPLOG`.
     // use default just so the schema doesn't flag it as required
+    #[serde(rename = "cmd")]
     pub command: PathBuf,
 
     /// The allowed arguments for the command execution.