Add "disable auto safe mode" option

[Steve-Mcl]

closes #308

Description

Adds "disable auto safe mode" option

Adds test:

  Launcher
    disable auto safe mode
      ✔ is disabled by default
      ✔ can be set by user

Related Issue(s)

Owner: #308
Parent: FlowFuse/flowfuse#4552

Checklist

• I have read the contribution guidelines
• Suitable unit/system level tests have been added and they pass
• Documentation has been updated
  • Upgrade instructions
  • Configuration details
  • Concepts
• Changes flowforge.yml?
  • Issue/PR raised on FlowFuse/helm to update ConfigMap Template
  • Issue/PR raised on FlowFuse/CloudProject to update values for Staging/Production

Labels

• Includes a DB migration? -> add the area:migration label

[hardillb]

Why did we need the changes to the got calls?

[Steve-Mcl]

Why did we need the changes to the got calls?

Only the got() call in loadSettings was supposed to be updated since got.get needed to be mocked in the tests.

e.g. got(someUrl) cannot be mocked so it was changed to got.get(someUrl) permitting me to sinon.stub(got, 'get') in the tests.