feat(ui) add Save Queue to Playlist (#4110)

* ui: add save queue to playlist

* fix(ui): improve toolbar layout

Signed-off-by: Deluan <deluan@navidrome.org>

* fix(ui): add loading state to save queue dialog

Signed-off-by: Deluan <deluan@navidrome.org>

* fix(ui): refresh playlist after saving queue

Signed-off-by: Deluan <deluan@navidrome.org>

* fix lint

Signed-off-by: Deluan <deluan@navidrome.org>

* remove duplication in PlayerToolbar and add tests

Signed-off-by: Deluan <deluan@navidrome.org>

* fix(i18n): update save queue text for clarity in English and Portuguese

Signed-off-by: Deluan <deluan@navidrome.org>

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Signed-off-by: Deluan <deluan@navidrome.org>

resources/i18n/pt-br.json

@@ -191,6 +191,7 @@
         "selectPlaylist": "Selecione a playlist:",
         "addNewPlaylist": "Criar \"%{name}\"",
         "export": "Exportar",
+        "saveQueue": "Salvar fila em nova Playlist",
         "makePublic": "Pública",
         "makePrivate": "Pessoal"
       },