fix: cancel the ending key event in gobble mode too

wihtout this, `gobble <Space> fillcmdline`
will send the space key to the web page
(and trigger the scroll event)

src/parsers/gobblemode.ts

@@ -45,7 +45,7 @@ export function parser(keys: MinimalKey[]) {
             modeState.args,
         ].join(" ")
         reset()
-        return { keys: [], exstr }
+        return { keys: [], exstr, isMatch: true }
     }
 
     const key = keys[0].key