Updates gdl-update-todo.sh's default behaviour and fixes URL grep

scripts/shell/gdl-update-todo.sh

@@ -12,7 +12,7 @@ show_help() {
 }
 
 should_abort_on_found=true
-should_parallel_download=false
+should_parallel_download=true
 custom_grep_search=''
 
 while [ "$#" -gt 0 ]; do
@@ -28,7 +28,7 @@ done
 gallery_dl_path=/mnt/e/home/Documents/data-hoarding
 cd "$gallery_dl_path"
 
-urls=($(grep -v "filter" -i "$gallery_dl_path/todo.md" | grep -Eo "(http|https)://[a-zA-Z0-9./?~?=_%:-]*"))
+urls=($(grep -v "filter" -i "$gallery_dl_path/todo.md" | grep -Eo "(mastodon:)?(http|https)://[a-zA-Z0-9.(/~@)?=_%:-]*"))
 
 if [ ! -z "$custom_grep_search" ]; then
   filtered_urls=()