feat(settings): search settings from the header and the command palette (#1714)

* feat(settings): search settings from the header and the command palette

The header search on the Settings page was shown but disabled. It now
searches a shared index of all 56 settings rows by translated title,
description and English synonyms, replaces the section page with ranked
results, and opens a result by scrolling to, focusing and briefly
highlighting its row. Enter opens the best match, and the section
navigation shows per-section match counts.

The command palette gains a "Settings" group that lists the best six
matches for a non-empty query, so any setting is one Ctrl/Cmd+K away.
Rows hidden by the current form state fall back to the control that
reveals them; rows the runtime cannot render are never returned.

The index ships through a new @iptvnator/workspace/shell/util/settings-search
sub-entrypoint so it stays out of the eager bundle, and a registry spec
keeps it in step with the section templates.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(settings): let search reveals win over pending input and gate embedded MPV rows

- A reveal (result click, command palette, Enter) now cancels a search
  keystroke still waiting for its debounce, so its q navigation can no
  longer supersede the reveal and leave the results open.
- Embedded MPV extra options and auto-reconnect require a lazily probed
  embedded MPV capability; frame copy also needs frameCopyAvailable, so
  search never offers a row the settings page cannot render.
- Keyboard users keep a focus-visible ring on the revealed row after the
  highlight fades.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

* fix(workspace): wait for palette probes without Promise.allSettled

The web tsconfig lib predates Promise.allSettled; use Promise.all over
rejection-safe probes instead.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

---------

Co-authored-by: 4gray <fourgray@proton.me>
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

apps/web/src/app/settings/settings-tmdb-section.component.html

@@ -10,7 +10,7 @@
     </header>
 
     <div formGroupName="tmdb">
-        <div class="setting-item">
+        <div class="setting-item" data-setting-id="tmdb-enable">
             <div class="setting-item__meta">
                 <h4>{{ 'SETTINGS.TMDB_ENABLE' | translate }}</h4>
                 <p>{{ 'SETTINGS.TMDB_ENABLE_DESCRIPTION' | translate }}</p>
@@ -24,7 +24,7 @@
         </div>
 
         @if (form().value.tmdb?.enabled === true) {
-            <div class="setting-item">
+            <div class="setting-item" data-setting-id="tmdb-api-key">
                 <div class="setting-item__meta">
                     <h4>{{ 'SETTINGS.TMDB_API_KEY' | translate }}</h4>
                     <p>{{ 'SETTINGS.TMDB_API_KEY_DESCRIPTION' | translate }}</p>
@@ -96,7 +96,10 @@
 
         @if (form().value.tmdb?.enabled === true) {
             @if (m3uVodDetailsControl; as m3uVodDetails) {
-                <div class="setting-item">
+                <div
+                    class="setting-item"
+                    data-setting-id="tmdb-m3u-vod-details"
+                >
                     <div class="setting-item__meta">
                         <h4>
                             {{ 'SETTINGS.TMDB_M3U_VOD_DETAILS' | translate }}
@@ -118,7 +121,7 @@
             }
         }
 
-        <div class="setting-item">
+        <div class="setting-item" data-setting-id="tmdb-cache">
             <div class="setting-item__meta">
                 <h4>{{ 'SETTINGS.TMDB_CACHE' | translate }}</h4>
                 <p>