docs: fix capitalization for `InputEvent.modifiers` (#46208)

Co-authored-by: trop[bot] <37223003+trop[bot]@users.noreply.github.com>
Co-authored-by: Erik Moura <[email protected]>

docs/api/structures/input-event.md

@@ -12,6 +12,6 @@
   `pointerDown`, `pointerUp`, `pointerMove`, `pointerRawUpdate`,
   `pointerCancel` or `pointerCausedUaAction`.
 * `modifiers` string[] (optional) - An array of modifiers of the event, can
-  be `shift`, `control`, `ctrl`, `alt`, `meta`, `command`, `cmd`, `isKeypad`,
-  `isAutoRepeat`, `leftButtonDown`, `middleButtonDown`, `rightButtonDown`,
-  `capsLock`, `numLock`, `left`, `right`.
+  be `shift`, `control`, `ctrl`, `alt`, `meta`, `command`, `cmd`, `iskeypad`,
+  `isautorepeat`, `leftbuttondown`, `middlebuttondown`, `rightbuttondown`,
+  `capslock`, `numlock`, `left`, `right`.