Fix blocklist-import bantime, unify filter bar, and improve config navigation

frontend/src/pages/ConfigPage.tsx

@@ -13,7 +13,8 @@
  *   Export       — raw file editors for jail, filter, and action files
  */
 
-import { useState } from "react";
+import { useEffect, useState } from "react";
+import { useLocation } from "react-router-dom";
 import { Tab, TabList, Text, makeStyles, tokens } from "@fluentui/react-components";
 import {
   ActionsTab,
@@ -58,8 +59,16 @@ type TabValue =
 
 export function ConfigPage(): React.JSX.Element {
   const styles = useStyles();
+  const location = useLocation();
   const [tab, setTab] = useState<TabValue>("jails");
 
+  useEffect(() => {
+    const state = location.state as { tab?: string; jail?: string } | null;
+    if (state?.tab === "jails") {
+      setTab("jails");
+    }
+  }, [location.state]);
+
   return (
     <div className={styles.page}>
       <div className={styles.header}>
@@ -86,7 +95,11 @@ export function ConfigPage(): React.JSX.Element {
       </TabList>
 
       <div className={styles.tabContent} key={tab}>
-        {tab === "jails" && <JailsTab />}
+        {tab === "jails" && (
+          <JailsTab
+            initialJail={(location.state as { jail?: string } | null)?.jail}
+          />
+        )}
         {tab === "filters" && <FiltersTab />}
         {tab === "actions" && <ActionsTab />}
         {tab === "server" && <ServerTab />}