[fix](trx-frontend-http): fix scheduler virtual channel selection

Apply scheduler-backed virtual channels as real manual selections so they take control, retune the rig, and restore bookmark decoder state including APRS/PKT. Also remove the inner border from the map decode locator tooltip.\n\nVerification: cargo test -p trx-frontend-http vchan\nVerification: node --check src/trx-client/trx-frontend/trx-frontend-http/assets/web/plugins/vchan.js\n\nCo-authored-by: OpenAI Codex <codex@openai.com>

Signed-off-by: Stan Grams <sjg@haxx.space>

src/trx-client/trx-frontend/trx-frontend-http/assets/web/style.css

@@ -1773,7 +1773,6 @@ body.map-fake-fullscreen-active {
   max-height: min(22rem, 60vh);
   overflow: auto;
   padding: 0.55rem 0.65rem;
-  border: 1px solid color-mix(in srgb, var(--accent-yellow) 26%, var(--border-light));
   border-radius: 0.65rem;
   background: color-mix(in srgb, var(--card-bg) 84%, transparent);
   color: var(--text);