fixed sticky-top because new hacker town square post card (#7089)

* fixed sticky-top because new hacker town square post card

* fixed hackathon page nav-badge

Author: developerfred

app/assets/v2/css/gitcoin.css

@@ -21,7 +21,7 @@ h4,
 .sticky-top {
   position: sticky!important;
   top: 0;
-  z-index: 1;
+  z-index: 3;
 }
 
 .lighter {

app/assets/v2/css/town_square.css

@@ -984,8 +984,8 @@ body.green.offer_view .announce {
 .nav-badge {
   font-size: 9px;
   color: var(--link-color);
-  top: -8px;
-  position: relative;
+  top: 20px;
+  position: absolute;
   font-weight: bold;
 }