Moved Portal to apps/

refs https://github.com/TryGhost/Toolbox/issues/594

- we're moving all the standalone apps to a separate folder to keep them
  out of the core code and easier to find

.github/dev.js

@@ -92,7 +92,7 @@ if (DASH_DASH_ARGS.includes('portal') || DASH_DASH_ARGS.includes('all')) {
     commands.push({
         name: 'portal',
         command: 'yarn dev',
-        cwd: path.resolve(__dirname, '../ghost/portal'),
+        cwd: path.resolve(__dirname, '../apps/portal'),
         prefixColor: 'magenta',
         env: {}
     });

.gitignore

@@ -126,8 +126,8 @@ Caddyfile
 /ghost/admin/dist
 
 # Portal
-!/ghost/portal/.env
-/ghost/portal/umd
+!/apps/portal/.env
+/apps/portal/umd
 
 # Sodo-Search
 /apps/sodo-search/public/main.css