add Gokapi one-click-apps (#1274)

* add linkwarden One-Click App

* add One-Click App linkwarden

* modify latest to specified version v2.13.1

* prettier linkwarden.yml --write to fix the error

* add NEXTAUTH_URL to fix logout user back to correct user log out url.

* add PairDrop app

* add gokapi

* update gokapi yaml file

* update format yaml

* update format yaml

* update yaml file

* format check

* update gokapi yaml file with version setting and docker hint.

Author: timhuangt

public/v4/apps/gokapi.yml

@@ -0,0 +1,27 @@
+captainVersion: 4
+caproverOneClickApp:
+    displayName: Gokapi
+    isOfficial: true
+    description: Lightweight selfhosted Firefox Send alternative without public upload. AWS S3 supported.
+    instructions:
+        start: Will start to deploy the Gokapi. Version can be adjusted by yourself.
+        end: Docker Compose is deployed. Please visit http://[your application]/setup to setup the application.
+    variables:
+        - id: $$cap_gokapi_version
+          label: Version
+          defaultValue: 'v2.2.1'
+          description: Check out their Docker page for the valid tags https://hub.docker.com/r/f0rc3/gokapi/tags
+          validRegex: /^([^\s^\/])+$/
+
+services:
+    $$cap_appname:
+        image: f0rc3/gokapi:$$cap_gokapi_version
+        container_name: gokapi
+        restart: always
+        volumes:
+            - $$cap_appname-gokapi-data:/app/data
+            - $$cap_appname-config-data:/app/config
+        env_file:
+            - './.env'
+        caproverExtra:
+            containerHttpPort: '53842'