JUSH textarea: Use oninput

diff --git a/externals/jush b/externals/jush
index e095c0d590d2e228f989739c6bcb206b54168c07..4124ada3d9a174ce005602137d73d3e5b2b8946e 160000 (submodule)
--- a/externals/jush
+++ b/externals/jush
@@ -1 +1 @@
-Subproject commit e095c0d590d2e228f989739c6bcb206b54168c07
+Subproject commit 4124ada3d9a174ce005602137d73d3e5b2b8946e