Update header styling and partner logos in server page

Enhanced the header by adjusting padding and introducing new logo images for better visual appeal. Added clickable logos with links to respective partner sites, improving user navigation and brand visibility.

web/server.go

@@ -121,9 +121,18 @@ const tmpl = `
 
 <div class="row-container">
   <div class="first-row">
-	<div style="display: flex; align-items: center; padding-left: 40px; padding-top: 20px; padding-bottom: 20px;">
-		<!-- img src="https://cdn.prod.website-files.com/649aef4c9068091b737a9baf/64c3e6ca809ba2f4f2d76359_streamingfast-p-500.png" width=150 height=63></img -->
-		<span style="font-family:sans-serif; font-weight: bold; font-size: 26px; color:#4F5671;">Hivemapper - Powered by The Graph Substreams</span>
+	<div style="display: flex; align-items: center; padding-left: 40px; padding-top: 5px; padding-bottom: 5px;">
+		<a href="https://hivemapper.com/">
+			<img src="https://encrypted-tbn0.gstatic.com/images?q=tbn:ANd9GcRxugF0W5SMUWI-Pp0abVDJ8zWDP8UJ5ccWJQ8zzYgsgUev7maTTasAWaD123-LTPuAl30&usqp=CAU" height=50/>
+		</a>
+		<span style="padding-left:10px; width:100%; font-family:sans-serif; font-weight: bold; font-size: 26px; color:#4F5671;">Hivemapper</span>
+		<span style="font-family:sans-serif; font-weight: bold; font-size: 18px; color:#4F5671; white-space: nowrap; padding-right:15px">Powered by:</span>
+		<a href="https://thegraph.com/">
+			<img src="https://cdn.prod.website-files.com/649aef4c9068091b737a9baf/66ad5cd70dec61e829ac393d_The%20Graph%20-%20Logo%20-%20Dark.svg"  height=40/>
+		</a>
+		<a href="https://www.streamingfast.io/#substreams">
+			<img style="padding-top: 5px" src="https://cdn.prod.website-files.com/649aef4c9068091b737a9baf/65119d95beb11cb3b1c4583c_Substreams-Tagline-color-p-800.png" height=75/>
+		</a>
 	</div>
 	<div style="padding-left: 25px;">
     <button class="round-button" onclick="window.location.href='./'">Overview</button>