new internal to define readline-like input edition shortcuts

You may now add this kind of shortcuts:

```toml
[[verbs]]
key = "alt-b"
execution = ":input_go_word_left"

[[verbs]]
key = "alt-f"
execution = ":input_go_word_right"

[[verbs]]
key = "alt-l"
execution = ":input_del_word_left"

[[verbs]]
key = "alt-r"
execution = ":input_del_word_right"
```

Fix #235

1 files changed, 1 insertions, 0 deletions

diff --git a/src/browser/browser_state.rs b/src/browser/browser_state.rs
index dea0b5b..9fedacd 100644
--- a/src/browser/browser_state.rs
+++ b/src/browser/browser_state.rs
@@ -593,6 +593,7 @@ impl AppState for BrowserState {
                 }
             }
             Internal::quit => AppStateCmdResult::Quit,
+            _ => AppStateCmdResult::Keep,
         })
     }