Do not wrap context depth and make max 9

Author: dantleech

CHANGELOG.md

@@ -10,6 +10,7 @@ main
 - Fix position of closing braces in context view
 - Show historic inline values
 - Do not show "undefined" variables
+- Ensure context depth is in range of 1-9
 
 0.1.1
 -----

src/app.rs

@@ -475,8 +475,8 @@ impl App {
                 self.exec_continuation(AppEvent::Run).await;
             }
             AppEvent::ContextDepth(inc) => {
-                let depth = self.context_depth;
-                self.context_depth = depth.wrapping_add(inc as u16);
+                let depth = self.context_depth.clone();
+                self.context_depth = depth.wrapping_add(inc as u16).max(1).min(9);
                 self.client
                     .lock()
                     .await