chore: bump theme submodule (fix repo grid auto-fill)

diff --git a/themes/danix-xyz-hacker b/themes/danix-xyz-hacker
index 346f48df3950901be42ee2b8d23350ad3ac925f5..708682f017fb0f6a1293bc0a422872c95025aa6d 160000 (submodule)
--- a/themes/danix-xyz-hacker
+++ b/themes/danix-xyz-hacker
@@ -1 +1 @@
-Subproject commit 346f48df3950901be42ee2b8d23350ad3ac925f5
+Subproject commit 708682f017fb0f6a1293bc0a422872c95025aa6d