re-organize cam menu grouping and split operations from global settings

web/kiri/index.css

@@ -839,6 +839,11 @@ th, tr, td {
     background-color: var(--bg-gray);
     height: 10px;
 }
+.set-sep {
+    background-color: var(--bg-gray) !important;
+    height: 10px;
+    right: -9px;
+}
 .set-header {
     background-color: rgba(0,0,0,0.1);
     text-align: center;

web/kiri/lang/en.js

@@ -427,7 +427,7 @@ kiri.lang['en-us'] = {
     sa_pldr_s:      "peel drop rate",
     sa_pldr_l:      "peel drop speed\nin mm/sec",
 
-    sa_base_m:      "base layers",
+    sa_base_m:      "base",
     sa_balc_s:      "layer count",
     sa_balc_l:      "number of\nbase layers",
     sa_bltn_l:      "base layer light on\ntime in seconds",