a11y: remove-X spans become keyboard-accessible with aria-label

The two `<span class="remove">x</span>` glyphs (one per queue
item, one per streamer-list item) had no semantic role, no
aria-label, no tabindex — entirely mouse-only and screen-readers
just announced them as the bare "x" character.

Made both fully keyboard-accessible:
- role="button" + tabindex="0" so they enter the tab order and
  read as buttons to AT
- aria-label="Remove" / "Entfernen" via new
  streamers.removeAria locale key (DE + EN)
- Keydown handler on Enter + Space synthesizes the same removal
  callback (mirroring native button behaviour for synthetic
  buttons — Enter on real buttons fires click, Space does too)
- Focus-visible state: 2px red glow ring + force opacity:1 on
  the streamer-list .remove (which is normally opacity:0 until
  the streamer-item is hovered) so keyboard navigators can see
  the focused X

Both call sites preserved e.stopPropagation in the keydown handler
so Enter on a focused X doesn't bubble up to the row's click
handler (which would trigger streamer-select).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/renderer-locale-de.ts

@@ -356,7 +356,8 @@ const UI_TEXT_DE = {
         autoRecordScanEmpty: 'Manueller Scan: kein Streamer ist gerade live.',
         liveNowTooltip: 'Aktuell live auf Twitch',
         modalCloseAria: 'Dialog schliessen',
-        sidebarEmpty: 'Noch keine Streamer. Fuege oben rechts einen hinzu.'
+        sidebarEmpty: 'Noch keine Streamer. Fuege oben rechts einen hinzu.',
+        removeAria: 'Entfernen'
     },
     vods: {
         noneTitle: 'Keine VODs',

src/renderer-locale-en.ts

@@ -356,7 +356,8 @@ const UI_TEXT_EN = {
         autoRecordScanEmpty: 'Manual scan: no streamers currently live.',
         liveNowTooltip: 'Currently live on Twitch',
         modalCloseAria: 'Close dialog',
-        sidebarEmpty: 'No streamers yet. Add one via the input at the top right.'
+        sidebarEmpty: 'No streamers yet. Add one via the input at the top right.',
+        removeAria: 'Remove'
     },
     vods: {
         noneTitle: 'No VODs',

src/renderer-queue.ts

@@ -572,7 +572,7 @@ function renderQueue(): void {
                     </div>
                 </div>
                 ${item.status === 'error' ? `<button class="queue-retry-btn" title="${escapeHtml(UI_TEXT.queue.retryItem)}" onclick="retryQueueItem('${item.id}')">&#x21bb;</button>` : ''}
-                <span class="remove" onclick="removeFromQueue('${item.id}')">x</span>
+                <span class="remove" role="button" tabindex="0" aria-label="${escapeHtml(UI_TEXT.streamers.removeAria)}" onclick="removeFromQueue('${item.id}')" onkeydown="if(event.key==='Enter'||event.key===' '){event.preventDefault();removeFromQueue('${item.id}');}">x</span>
             </div>
         `;
     }).join('');

src/renderer-streamers.ts

@@ -525,10 +525,20 @@ function renderStreamers(): void {
         const removeSpan = document.createElement('span');
         removeSpan.className = 'remove';
         removeSpan.textContent = 'x';
+        removeSpan.setAttribute('role', 'button');
+        removeSpan.setAttribute('tabindex', '0');
+        removeSpan.setAttribute('aria-label', UI_TEXT.streamers.removeAria);
         removeSpan.addEventListener('click', (e) => {
             e.stopPropagation();
             void removeStreamer(streamer);
         });
+        removeSpan.addEventListener('keydown', (e) => {
+            if (e.key === 'Enter' || e.key === ' ') {
+                e.preventDefault();
+                e.stopPropagation();
+                void removeStreamer(streamer);
+            }
+        });
         item.append(nameSpan, autoBtn, vodBtn, recBtn, removeSpan);
 
         item.addEventListener('click', () => {

src/styles.css

@@ -443,10 +443,18 @@ body {
     cursor: pointer;
 }
 
-.streamer-item:hover .remove {
+.streamer-item:hover .remove,
+.streamer-item .remove:focus-visible {
     opacity: 1;
 }
 
+.streamer-item .remove:focus-visible,
+.queue-item .remove:focus-visible {
+    outline: none;
+    box-shadow: 0 0 0 2px rgba(255, 70, 70, 0.5);
+    border-radius: 3px;
+}
+
 /* Live-dot — red pulsing indicator shown next to a streamer's name in
    the sidebar when they are currently broadcasting on Twitch. */
 .streamer-live-dot {