Rename Import -> Add, and avoid surfacing MusicBrainz where unneeded

lib/music_library_web/components/barcode_scanner_component.ex

@@ -50,10 +50,10 @@ defmodule MusicLibraryWeb.BarcodeScannerComponent do
       <div class="mt-4 flex justify-center">
         <.button
           disabled={length(@scan_results) == 0}
-          phx-disable-with={gettext("Importing...")}
+          phx-disable-with={gettext("Adding...")}
           phx-click={JS.push("import_releases", target: "#barcode-scanner")}
         >
-          {gettext("Import releases")}
+          {gettext("Add releases")}
         </.button>
       </div>
     </div>

lib/music_library_web/components/import_component.ex

@@ -24,8 +24,8 @@ defmodule MusicLibraryWeb.ImportComponent do
           name={:mb_query}
           field={@form[:mb_query]}
           type="text"
-          label={gettext("Search for a record on MusicBrainz")}
-          prompt={gettext("Search for records")}
+          label={gettext("Search for a record")}
+          prompt={gettext("Search for a record")}
           phx-debounce="500"
           autocorrect="off"
           autocapitalize="none"