feat(src): added auto-updater

[DalderupMaurice]

Description

• Added yarnrc to automatically pin deps
• Added release command for windows/linux
• Enforced code signing
• Set publishing source of releasing/auto-updates
• Added ability for automatic updates (during app startup)
• Updated splashscreen to match design
• Fixed error with devtools extension server
• Removed unused code in settings (regarding the previous way of updating the app)
• Added repository url to package.json which is needed for electron-builder

Motivation and Context

We need auto updates and code signing 😄

How Has This Been Tested?

All the ways possible

Screenshots (if appropriate)

Screenshot from loading screen update:

Types of changes

• Chore (tests, refactors, and fixes)
• New feature (adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)

Checklist

• I have read the CONTRIBUTING guidelines and confirm that my code follows the code style of this project.
• Tests for the changes have been added (for bug fixes/features)

Documentation

• Docs need to be added/updated (for bug fixes/features)

Closing issues

Fixes #476
Fixes #720

[codecov]

Codecov Report

Merging #782 into develop will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           develop   #782   +/-   ##
======================================
  Coverage       54%    54%           
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  Files          225    225           
  Lines         1922   1922           
  Branches       266    266           
======================================
  Hits          1038   1038           
  Misses         730    730           
  Partials       154    154