chore: clarify id default command purpose

Author: viviveevee

crates/icp-cli/src/commands/identity/default.rs

@@ -3,7 +3,7 @@ use icp::context::Context;
 use icp::identity::manifest::{IdentityDefaults, IdentityList, change_default_identity};
 use tracing::info;
 
-/// Display the currently selected identity
+/// Display or set the currently selected identity
 #[derive(Debug, Args)]
 pub(crate) struct DefaultArgs {
     /// Identity to set as default. If omitted, prints the current default.

docs/reference/cli.md

@@ -835,7 +835,7 @@ Manage your identities
 ###### **Subcommands:**
 
 * `account-id` — Display the ICP ledger or ICRC-1 account identifier for the current identity
-* `default` — Display the currently selected identity
+* `default` — Display or set the currently selected identity
 * `delete` — Delete an identity
 * `export` — Print the PEM file for the identity
 * `import` — Import a new identity
@@ -873,7 +873,7 @@ Display the ICP ledger or ICRC-1 account identifier for the current identity
 
 ## `icp identity default`
 
-Display the currently selected identity
+Display or set the currently selected identity
 
 **Usage:** `icp identity default [NAME]`