Downgrade Chromium: improve search algorithm for arm64

Extra arm64 versions were appearing in the list ever since my change to
get available versions using l10n language packs. Now it searches for
available versions with both l10n packages and the main chromium-browser
package.

apps/Downgrade Chromium/install

@@ -19,7 +19,7 @@ if [ -z "$url_list" ];then
 fi
 
 #determine the available versions of Chromium
-version_list="$(echo "$url_list" | grep '^chromium-browser-l10n_' | sed 's/\..*//' | sed 's/.*_//' | sort -V | uniq)"
+version_list="$(echo "$url_list" | grep '^chromium-browser-l10n_' | sed 's/\..*//' | sed 's/.*_//' | sort | list_intersect "$(echo "$url_list" | grep '^chromium-browser_' | sed 's/\..*//' | sed 's/.*_//' | sort)" | sort -V | uniq)"
 
 #determine the main package names available. (chromium-browser, chromium-codecs-ffmpeg, etc.)
 package_names="$(echo "$url_list" | sed 's/_.*//' | sort | uniq)"
@@ -109,16 +109,16 @@ wget -O l10n.deb "https://archive.raspberrypi.org/debian/pool/main/c/chromium-br
 wget -O ffmpeg_extra.deb "https://archive.raspberrypi.org/debian/pool/main/c/chromium-browser/$ffmpeg_extra_url" || error "Failed to download $ffmpeg_extra_url"
 
 status "Installing the packages..."
-"${DIRECTORY}/api" apt_lock_wait
+apt_lock_wait
 sudo apt install -fy --allow-downgrades --allow-change-held-packages "$(pwd)/cb.deb" "$(pwd)/l10n.deb" "$(pwd)/ffmpeg_extra.deb" || error "APT failed to install the packages"
 rm -f cb.deb l10n.deb ffmpeg_extra.deb || error "Failed to remove cb.deb l10n.deb ffmpeg_extra.deb"
 
 status "Holding Chromium version so it won't upgrade..."
-"${DIRECTORY}/api" apt_lock_wait
+apt_lock_wait
 echo "chromium-browser hold" | sudo dpkg --set-selections
-"${DIRECTORY}/api" apt_lock_wait
+apt_lock_wait
 echo "chromium-browser-l10n hold" | sudo dpkg --set-selections
-"${DIRECTORY}/api" apt_lock_wait
+apt_lock_wait
 echo "chromium-codecs-ffmpeg-extra hold" | sudo dpkg --set-selections
 
 if [ "$version" -le 88 ] && [ "$(get_codename)" == 'bullseye' ];then