[style](trx-frontend-http): align auto bw button sizing

Apply the same explicit height and padding rules to the\nAuto BW button as the Set button in the spectrum\ncontrols, including the mobile layout.\n\nCo-authored-by: Codex <codex@openai.com>

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

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

@@ -878,7 +878,8 @@ button:focus-visible, input:focus-visible, select:focus-visible {
   text-align: right;
   height: 1.5rem;
 }
-#spectrum-bw-set-btn {
+#spectrum-bw-set-btn,
+#spectrum-bw-auto-btn {
   height: 1.5rem;
   min-height: 0;
   padding: 0 8px;
@@ -963,6 +964,7 @@ button:focus-visible, input:focus-visible, select:focus-visible {
     font-size: 0.82rem;
   }
   #spectrum-bw-set-btn,
+  #spectrum-bw-auto-btn,
   #spectrum-auto-btn {
     height: 2.2rem;
     min-height: 0;