Add footer

web/static/index.css

@@ -389,3 +389,10 @@ hr {
     height: 0;
     clear: left;
 }
+
+footer {
+    margin-top: 50px;
+    margin-bottom: 10px;
+    font-size: 10px;
+    text-align: center;
+}

web/static/index.js

@@ -13,6 +13,10 @@ function isOffScreen(el) {
     );
 }
 
+function scrollToBottom() {
+    window.scrollTo({ top: document.body.scrollHeight, behavior: 'smooth' });
+}
+
 function isHttpWarningStatus(code) {
     const warningStatuses = [429, 400, 413];
     return warningStatuses.includes(code);