migrate to v4

public/v4/apps/filestash.yml

@@ -0,0 +1,21 @@
+captainVersion: 4
+services:
+  $$cap_appname:
+    image: machines/filestash:$$cap_filestash_version
+    volumes:
+      - $$cap_appname-app-data-state:/app/data/state
+    restart: always
+    caproverExtra:
+      containerHttpPort: "8334"
+caproverOneClickApp:
+  variables:
+    - id: $$cap_filestash_version
+      label: Filestash Version
+      defaultValue: b7b45f2
+      description: Check out their Docker page for the valid tags https://hub.docker.com/r/machines/filestash/tags
+  instructions:
+    start: Filestash is a modern web client for SFTP, S3, FTP, WebDAV, Git, Minio, LDAP, CalDAV, CardDAV, Mysql, Backblaze, ...
+    end: Filestash is deployed and available as srv-captain--$$cap_appname-db:8334 to other apps.
+  displayName: Filestash
+  description: A modern web client for SFTP, S3, FTP, WebDAV, Git, Minio, LDAP, CalDAV, CardDAV, Mysql, Backblaze, ...
+  documentation: Filestash https://www.filestash.app