feat(swaylock): add swaylock configuration

GitOrigin-RevId: d7301486e5251582a4d51b5957889dcc859d25b0
diff --git a/private_dot_config/swaylock/config.tmpl b/private_dot_config/swaylock/config.tmpl
new file mode 100644
index 0000000..0d5db42
--- /dev/null
+++ b/private_dot_config/swaylock/config.tmpl
@@ -0,0 +1,4 @@
+show-failed-attempts
+{{ if and (index . "swayLock") (index .swayLock "bg") (ne .swayLock.bg "") -}}
+image={{ .swayLock.bg | quote }}
+{{- end }}