add cookies support

package/share/ahriman/templates/build-status/table.jinja2

@@ -266,7 +266,7 @@
 
         table.on("check.bs.table uncheck.bs.table check-all.bs.table uncheck-all.bs.table", _ => {
             if (packageRemoveButton) {
-                packageRemoveButton.disabled = !table.bootstrapTable("getSelections").length;
+                packageRemoveButton.disabled = !getSelection().length;
             }
         });
         table.on("click-row.bs.table", (self, data, row, cell) => {

package/share/ahriman/templates/utils/bootstrap-scripts.jinja2

@@ -19,6 +19,8 @@
 
 <script src="https://cdn.jsdelivr.net/npm/chart.js@4.4.4/dist/chart.umd.min.js" crossorigin="anonymous" type="application/javascript"></script>
 
+<script src="https://cdn.jsdelivr.net/npm/js-cookie@3.0.5/dist/js.cookie.min.js" crossorigin="anonymous" type="application/javascript"></script>
+
 <script>
     async function copyToClipboard(text, button) {
         await navigator.clipboard.writeText(text);
@@ -144,6 +146,7 @@
             interval = intervalSelector.querySelector(".active")?.dataset?.interval; // find active element
         }
 
+        let intervalId = null;
         if (interval) {
             if (toggle.checked) {
                 // refresh UI
@@ -152,13 +155,15 @@
                 });
                 intervalSelector.querySelector(`a[data-interval="${interval}"]`)?.classList?.add("active");
                 // finally create timer task
-                return setInterval(callback, interval);
+                intervalId = setInterval(callback, interval);
             }
         } else {
             toggle.checked = false; // no active interval found, disable toggle
         }
 
-        return null; // return null to assign to keep method sane
+        Cookies.set(`ahriman-${toggle.id}-refresh-enabled`, toggle.checked);
+        Cookies.set(`ahriman-${toggle.id}-refresh-interval`, interval);
+        return intervalId;
     }
 
     Date.prototype.toISOStringShort = function() {

src/ahriman/core/http/sync_http_client.py

@@ -72,8 +72,8 @@ class SyncHttpClient(LazyLogging):
         """
         session = requests.Session()
         python_version = ".".join(map(str, sys.version_info[:3]))  # just major.minor.patch
-        session.headers["User-Agent"] = f"ahriman/{__version__} " \
-            f"{requests.utils.default_user_agent()} " \
+        session.headers["User-Agent"] = f"ahriman/{__version__}" \
+            f"{requests.utils.default_user_agent()}" \
             f"python/{python_version}"
 
         return session