Feat: prelude and new words

src/state/editor.rs

@@ -3,6 +3,13 @@ use std::ops::RangeInclusive;
 
 use cagire_ratatui::Editor;
 
+#[derive(Clone, Copy, PartialEq, Eq, Default)]
+pub enum EditorTarget {
+    #[default]
+    Step,
+    Prelude,
+}
+
 #[derive(Clone, Copy, PartialEq, Eq)]
 pub enum PatternField {
     Length,
@@ -76,6 +83,7 @@ pub struct EditorContext {
     pub copied_steps: Option<CopiedSteps>,
     pub show_stack: bool,
     pub stack_cache: RefCell<Option<StackCache>>,
+    pub target: EditorTarget,
 }
 
 #[derive(Clone)]
@@ -125,6 +133,7 @@ impl Default for EditorContext {
             copied_steps: None,
             show_stack: false,
             stack_cache: RefCell::new(None),
+            target: EditorTarget::default(),
         }
     }
 }