* Adds scopeUID config to enable multiple instances of Watchtower
* Adds tests for multiple instance support with scopeuid
* Adds docs on scope monitoring and multiple instance support
* Adds multiple instances docs to mkdocs config file
* Changes multiple instances check and refactors naming for scope feature
* Applies linter suggestions
* Fixes documentation on Watchtower monitoring scope
That means the update timeout until now has been 1 second, as that's the sleep duration of the timeout checker.
This commit changes it to 10 actual minutes.
