Prevent null dereference in x-template when element is not found

[rameel]

No description provided.

[github-actions]

📦 Bundle size comparison

Name	Size	Gzip	Brotli	Δ
alpinegear-when.min.js	1.22 KiB	657 B	570 B
alpinegear-when.esm.min.js	1.15 KiB	625 B	548 B
alpinegear-typegrab.min.js	509 B	348 B	294 B
alpinegear-typegrab.esm.min.js	471 B	333 B	277 B
alpinegear-template.min.js	483 B (+3 B)	326 B (+3 B)	246 B	🔴
alpinegear-template.esm.min.js	421 B (+3 B)	294 B (+3 B)	219 B (+3 B)	🔴
alpinegear-router.min.js	9.40 KiB	4.03 KiB	3.60 KiB
alpinegear-router.esm.min.js	9.38 KiB	4.01 KiB	3.58 KiB
alpinegear-match.min.js	1.49 KiB	778 B	681 B
alpinegear-match.esm.min.js	1.43 KiB	748 B	660 B
alpinegear-main.min.js	6.90 KiB (+3 B)	2.81 KiB (+2 B)	2.48 KiB (+3 B)	🔴
alpinegear-main.esm.min.js	6.94 KiB (+3 B)	2.86 KiB (+2 B)	2.52 KiB (+1 B)	🔴
alpinegear-hotkey.min.js	2.02 KiB	1.10 KiB	975 B
alpinegear-hotkey.esm.min.js	1.96 KiB	1.07 KiB	958 B
alpinegear-fragment.min.js	1.02 KiB	552 B	484 B
alpinegear-fragment.esm.min.js	980 B	521 B	457 B
alpinegear-format.min.js	1.10 KiB	638 B	554 B
alpinegear-format.esm.min.js	1.04 KiB	603 B	527 B
alpinegear-dialog.min.js	1.79 KiB	967 B	822 B
alpinegear-dialog.esm.min.js	1.75 KiB	951 B	811 B
alpinegear-destroy.min.js	191 B	167 B	123 B
alpinegear-destroy.esm.min.js	128 B	123 B	91 B
alpinegear-bound.min.js	3.93 KiB	1.81 KiB	1.57 KiB
alpinegear-bound.esm.min.js	3.88 KiB	1.79 KiB	1.55 KiB