local: Apply DDEV self-updates to .gitignore

.ddev/.gitignore

@@ -4,36 +4,27 @@
 
 /**/*.example
 /.dbimageBuild
-/.dbimageExtra
 /.ddev-docker-*.yaml
 /.*downloads
-/.global_commands
 /.homeadditions
 /.importdb*
 /.sshimageBuild
-/.venv
 /.webimageBuild
-/.webimageExtra
 /apache/apache-site.conf
 /commands/.gitattributes
-/commands/db/mysql
-/commands/host/launch
-/commands/web/xdebug
-/commands/web/live
 /config.local.y*ml
+/config.*.local.y*ml
 /db_snapshots
-/import-db
-/import.yaml
 /mutagen/mutagen.yml
 /mutagen/.start-synced
 /nginx_full/nginx-site.conf
 /postgres/postgresql.conf
 /providers/acquia.yaml
 /providers/lagoon.yaml
+/providers/pantheon.yaml
 /providers/platform.yaml
 /providers/upsun.yaml
 /sequelpro.spf
-/settings/settings.ddev.py
 /traefik/config/agaric-coop.yaml
 /traefik/certs/agaric-coop.crt
 /traefik/certs/agaric-coop.key