[feat](trx-frontend-http): mark Tools active for its destinations

Grouping Statistics, Recorder, Settings and About behind Tools left the
tab strip looking identical on all four: the destination's own button
carries the active class, but the strip hides that button, so nothing
was marked.  The page titles named the page without saying how you got
there.

Mark the Tools button when the active destination is one the strip hides.
That state is read from the button's computed display rather than from a
second copy of the grouping, so the two cannot drift: whatever ui-core
puts in the menu lights up Tools, and a destination promoted back into
the strip stops doing so with no further change.

Tools already carries the tab class, so the existing active styling
applies unchanged.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01GdyUjuXejCEfiub675z6cz
Signed-off-by: Stan Grams <sjg@haxx.space>

src/trx-client/trx-frontend/trx-frontend-http/assets/web/generated/app.js

@@ -5592,6 +5592,8 @@ function navigateToTab(name, options = {}) {
   _activeTab = name;
   document.querySelectorAll(".tab-bar .tab").forEach((t) => t.classList.remove("active"));
   btn.classList.add("active");
+  const toolsBtn = document.getElementById("mobile-more-btn");
+  if (toolsBtn) toolsBtn.classList.toggle("active", getComputedStyle(btn).display === "none");
   window.trxUi?.syncSelectedTab(document.querySelector(".tab-bar-nav"), btn);
   document.querySelectorAll(".tab-panel").forEach((p) => p.style.display = "none");
   const panel = document.getElementById(`tab-${name}`);

src/trx-client/trx-frontend/trx-frontend-http/frontend/src/app.ts

@@ -4600,6 +4600,12 @@ function navigateToTab(name: TabName, options: { updateHistory?: boolean; replac
   _activeTab = name;
   document.querySelectorAll(".tab-bar .tab").forEach((t) => t.classList.remove("active"));
   btn.classList.add("active");
+  // A destination the strip hides is reached through Tools, so mark that
+  // button instead — otherwise the strip looks identical on all four of them.
+  // Derived from what is actually hidden rather than from a second copy of the
+  // grouping, which would drift from the one ui-core installs.
+  const toolsBtn = document.getElementById("mobile-more-btn");
+  if (toolsBtn) toolsBtn.classList.toggle("active", getComputedStyle(btn).display === "none");
   window.trxUi?.syncSelectedTab(document.querySelector(".tab-bar-nav"), btn);
   document.querySelectorAll<HTMLElement>(".tab-panel").forEach((p) => p.style.display = "none");
   const panel = document.getElementById(`tab-${name}`);