General enhancements to macOS ventura binary

[umbynos]

Please check if the PR fulfills these requirements

• The PR has no duplicates (please search among the Pull Requests
  before creating one)
• Tests for the changes have been added (for bug fixes / features)

• What kind of change does this PR introduce?

Enhancements

• What is the current behavior?

  • MacOS Ventura does not like that the agent binary creates files in the same directory where the binary sits
  • The agent was not able to generate the config file on firts run

• What is the new behavior?

1. config.ini:
   • The config searching/creation has been enhanced, now the agent is able to generate the config on first start (for more details see config.ini file should be created in the user folder #733)
   • I've added the possibility to specify the config path with a special env var: ARDUINO_CREATE_AGENT_CONFIG
2. additional-config.ini needed some change as well. Now it's handled correctly but in the user dir and not in the binary folder.
3. logs/ directory containing crash reports has been moved to user dir.
4. Along the way I removed some unused functionality, like the "embeddedAutoextract" feature, which has never been used and used the embed package to remove duplicated files

• Does this PR introduce a breaking change?

yes, docs need to be updated accordingly after the merge

• Other information:

Some of the commits are part of the 1.2.7-ventura release

[codecov-commenter]

Codecov Report

Base: 11.40% // Head: 11.23% // Decreases project coverage by -0.18% ⚠️

Coverage data is based on head (60d58c1) compared to base (c724474).
Patch coverage: 0.00% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #741      +/-   ##
==========================================
- Coverage   11.40%   11.23%   -0.18%     
==========================================
  Files          51       52       +1     
  Lines        3910     3971      +61     
==========================================
  Hits          446      446              
- Misses       3409     3470      +61     
  Partials       55       55              

Flag	Coverage Δ
unit	11.23% <0.00%> (-0.18%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
certificates.go	0.00% <0.00%> (ø)
config.go	0.00% <0.00%> (ø)
hub.go	0.00% <0.00%> (ø)
icon/iconlinux.go	0.00% <0.00%> (ø)
main.go	2.50% <0.00%> (+0.16%)	⬆️
systray/systray.go	0.00% <0.00%> (ø)
systray/systray_real.go	0.00% <0.00%> (ø)
update.go	0.00% <0.00%> (ø)
updater/updater.go	0.00% <0.00%> (ø)
updater/updater_default.go	0.00% <0.00%> (ø)
... and 4 more

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[cmaglie]

Closing because the original PR has been split into smaller PRs -> https://github.com/arduino/arduino-create-agent/milestone/1?closed=1