✨ feat(config_cli): implement action subcommand

- adds a new subcommand to configure actions on rules
- allows setting action to trash or delete for a specific rule id

src/config_cli/action_cli.rs

@@ -0,0 +1,35 @@
+use clap::{Parser, ValueEnum};
+use cull_gmail::{Config, EolAction, Error, Result};
+
+#[derive(Debug, Clone, Parser, ValueEnum)]
+pub enum Action {
+    /// Set the action to trash
+    #[clap(name = "trash")]
+    Trash,
+    /// Set the action to
+    #[clap(name = "add")]
+    Delete,
+}
+
+#[derive(Debug, Parser)]
+pub struct ActionCli {
+    /// Id of the rule on which action applies
+    #[clap(short, long)]
+    id: usize,
+    /// Configuration commands
+    #[command(subcommand)]
+    action: Action,
+}
+
+impl ActionCli {
+    pub fn run(&self, mut config: Config) -> Result<()> {
+        if config.get_rule(self.id).is_none() {
+            return Err(Error::RuleNotFound(self.id));
+        }
+
+        match self.action {
+            Action::Trash => config.set_action_on_rule(self.id, &EolAction::Trash),
+            Action::Delete => config.set_action_on_rule(self.id, &EolAction::Trash),
+        }
+    }
+}