fix(collections): one confirmed Clear recently viewed action (#1865)

A playlist's own recently viewed page (/workspace/<provider>/<id>/recent,
opened from the dashboard's recently viewed rails) showed two clear buttons:
the page's "Clear recently viewed <type>", which confirms through
createClearCollectionAction, and a header delete_sweep button that cleared
every tab of the playlist at once without asking. Remove the header bulk
action end to end, and the unreachable, unconfirmed clear button of the M3U
channel list's recent view, so every clear goes through
createClearCollectionAction. Drop the two i18n keys only those buttons used.

E2E: a shared helper asserts one clear control per page and one confirmation
per press; the M3U, Xtream and Stalker recent tests cancel first (rows stay),
then clear once on the playlist's own recently viewed page.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

libs/ui/components/src/lib/channel-list-container/channel-list-container.component.html

@@ -13,16 +13,6 @@
         <header class="context-header">
             <div class="context-header__top">
                 <h2>{{ viewTitle() | translate }}</h2>
-                @if (
-                    activeView() === 'recent' && recentChannelItems().length > 0
-                ) {
-                    <button mat-button (click)="clearRecentChannels()">
-                        {{
-                            'WORKSPACE.SHELL.CLEAR_RECENTLY_VIEWED_SECTION'
-                                | translate
-                        }}
-                    </button>
-                }
             </div>
         </header>
         <div class="context-divider"></div>

libs/ui/components/src/lib/channel-list-container/channel-list-container.component.ts

@@ -14,7 +14,6 @@ import {
     untracked,
 } from '@angular/core';
 import { toObservable, toSignal } from '@angular/core/rxjs-interop';
-import { MatButtonModule } from '@angular/material/button';
 import { MatIconModule } from '@angular/material/icon';
 import { ActivatedRoute, NavigationEnd, Router } from '@angular/router';
 import { Store } from '@ngrx/store';
@@ -111,7 +110,6 @@ const EPG_AVAILABILITY_REFRESH_DEBOUNCE_MS = 2000;
         CommonModule,
         FavoritesViewComponent,
         GroupsViewComponent,
-        MatButtonModule,
         MatIconModule,
         RecentViewComponent,
         TranslatePipe,
@@ -720,26 +718,6 @@ export class ChannelListContainerComponent implements OnInit, OnDestroy {
         );
     }
 
-    async clearRecentChannels(): Promise<void> {
-        const playlistId = this.resolvedPlaylistId();
-        if (!playlistId) {
-            return;
-        }
-
-        const updatedPlaylist = await firstValueFrom(
-            this.playlistsService.clearM3uRecentlyViewed(playlistId)
-        );
-
-        this.store.dispatch(
-            PlaylistActions.updatePlaylistMeta({
-                playlist: {
-                    _id: playlistId,
-                    recentlyViewed: updatedPlaylist?.recentlyViewed ?? [],
-                } as PlaylistMeta,
-            }) as any
-        );
-    }
-
     onSidebarWidthRequested(width: number): void {
         this.sidebarWidthRequested.emit(width);
     }