ESLint: Some cleanup

[Pezmc]

Description

Addresses some low hanging disables in our eslint rules files
I've fixed rules that don't require changing code functionality, could be auto-fixed, or there were only a few instances of.

• Remove the import/order mute
• Remove the promise/always-return rule mute
• Auto-sort all imports
• Remove old rule disables
• Fix vue/require-default-prop
• Fix vue/this-in-template
• Fix vue/no-multi-spaces
• Mute vue/no-v-html where it needs to be used

Related Issue(s)

N/a

Checklist

• I have read the contribution guidelines
• [-] Suitable unit/system level tests have been added and they pass - No new changes
• [-] Documentation has been updated
  • Upgrade instructions
  • Configuration details
  • Concepts
• Changes flowforge.yml?
  • Issue/PR raised on flowforge/helm to update ConfigMap Template
  • Issue/PR raised on flowforge/CloudProject to update values for Staging/Production

Labels

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

[Pezmc]

This is a confusing mix of promises and async behaviour. I chose not to refactor it for risk of including a regression.

[Steve-Mcl]

• Visually checked all 182 files for any scripted anomalies. OK
• Checked cases where an explicit return value was added. OK

TODO:

• Pull and fire up locally on win box
• Approve
• Announce on Dev
• Merge

[Steve-Mcl]

Tested locally. Announced on dev channel. Good to go once GH tests complete