feat(web): refresh palette, simplify ranking toolbar and drop export

reaction_board/web/static/views/video.js

@@ -3,7 +3,7 @@ import {
   badge, centerActiveChips, cover, emptyState, metricChips, metricGrid,
   sectionHeader, videoCard,
 } from "../components.js";
-import { lineChart, emptyChart } from "../charts.js";
+import { lineChart, themeColor } from "../charts.js";
 import {
   escapeAttr, escapeHtml, formatCount, formatDate, formatDelta,
   formatDuration, formatPercent, formatScore, metricLabel, statusLabel,
@@ -119,7 +119,7 @@ export async function renderVideo(root, { params, query }) {
       dates: trend.dates || [],
       values: trend.series?.[metric] || [],
       name: metricLabel(metric),
-      color: metric === "view" ? "#fb7299" : "#00aeec",
+      color: metric === "view" ? themeColor("accent") : themeColor("blue"),
       scale: true,
     });
   }