Issues with shared database installation

[cotycrosby]

Having issues with running this plugin on top of a load balancer. Unable to activate the plugin when on a different container.

Example

• Our server installs the plugin on Container A
• Container B does not see the redirects because it can't be installed on Container B

I believe the issue is because the install migration does not check to see if the tables have already been created.

https://github.com/Dolphiq/craft3-plugin-redirect/blob/master/src/migrations/Install.php