Refactor integrations logic and replace hardcoded client ids with envars

frontend/public/data/cloudIntegrations.js

@@ -0,0 +1,83 @@
+import {
+    SITE_URL,
+    CLIENT_ID_HEROKU,
+    CLIENT_ID_NETLIFY
+} from '../../components/utilities/config';
+
+const cloudIntegrationOptions = [
+    {
+        name: 'Heroku',
+        slug: 'heroku',
+        image: 'Heroku', 
+        isAvailable: true,
+        type: 'oauth2',
+        clientId: CLIENT_ID_HEROKU,
+        docsLink: ''
+    },
+    {
+        name: 'Vercel',
+        slug: 'vercel',
+        image: 'Vercel', 
+        isAvailable: true,
+        type: 'vercel',
+        clientId: '',
+        docsLink: ''
+    },
+    {
+        name: 'Netlify',
+        slug: 'netlify',
+        image: 'Netlify', 
+        isAvailable: true,
+        type: 'oauth2',
+        clientId: CLIENT_ID_NETLIFY,
+        redirectURL: `${SITE_URL}/netlify`,
+        docsLink: ''
+    },
+    {
+        name: 'Google Cloud Platform',
+        slug: 'gcp',
+        image: 'Google Cloud Platform', 
+        isAvailable: false,
+        type: '',
+        clientId: '',
+        docsLink: ''
+    },
+    {
+        name: 'Amazon Web Services',
+        slug: 'aws',
+        image: 'Amazon Web Services', 
+        isAvailable: false,
+        type: '',
+        clientId: '',
+        docsLink: ''
+    },
+    {
+        name: 'Microsoft Azure',
+        slug: 'azure',
+        image: 'Microsoft Azure', 
+        isAvailable: false,
+        type: '',
+        clientId: '',
+        docsLink: ''
+    },
+    {
+        name: 'Travis CI',
+        slug: 'travisci',
+        image: 'Travis CI', 
+        isAvailable: false,
+        type: '',
+        clientId: '',
+        docsLink: ''
+    },
+    {
+        name: 'Circle CI',
+        slug: 'circleci',
+        image: 'Circle CI', 
+        isAvailable: false,
+        type: '',
+        clientId: '',
+        docsLink: ''
+    }
+]
+
+export { cloudIntegrationOptions };

frontend/public/json/cloudIntegrations.json

@@ -27,15 +27,6 @@
         "redirectURL": "http://localhost:8080/netlify",
         "docsLink": ""
     },
-    {
-        "name": "Fly.io",
-        "slug": "flyio",
-        "image": "Google Cloud Platform",
-        "isAvailable": true,
-        "type": "accessToken",
-        "clientId": "",
-        "docsLink": ""
-    },
     {
         "name": "Google Cloud Platform",
         "slug": "gcp",