fix(event): Remove command + arrow right navigation

之前就是因为 command + left 和 right 会导致错误地跳转，才将其转换为 command + [ 和 command + ] 跳转的

src-tauri/src/inject/event.js

@@ -1,8 +1,6 @@
 const shortcuts = {
   ArrowUp: () => scrollTo(0, 0),
   ArrowDown: () => scrollTo(0, document.body.scrollHeight),
-  ArrowLeft: () => window.history.back(),
-  ArrowRight: () => window.history.forward(),
   '[': () => window.history.back(),
   ']': () => window.history.forward(),
   r: () => window.location.reload(),