fix(nav): align header bar height with zibll main.css

Drop forced 34px CTA chips and container min-height:50 that inflated
or shrank the bar vs zibll. Restore .navbar-but .but to 0.8em / 0.3em
1em / margin 0.4em; keep logo 36px, header pad 8px 20px, fixed reserve 88px.

assets/css/frontend/nav/zib-navbar-core.css

@@ -293,17 +293,17 @@ badge.top,
 }
 
 .navbar-top .navbar-but .but {
-    font-size: 13px;
-    padding: 0 14px !important;
-    margin: 0 4px;
+    font-size: 0.8em;
+    padding: 0.3em 1em !important;
+    margin: 0.4em;
     display: inline-flex !important;
     align-items: center;
     justify-content: center;
-    line-height: 1;
+    line-height: 1.44;
     vertical-align: middle;
-    height: 34px;
-    min-height: 34px;
-    max-height: 34px;
+    height: auto;
+    min-height: 0;
+    max-height: 50px;
     box-sizing: border-box;
     width: fit-content;
 }