Fix path processing

[Pwuts]

Background

We continue to have issues where a piece of code containing a relative path reference is moved and suddenly the logs folder or the workspace folder isn't in the right place anymore.

Changes

• Fix and clean up path processing in logs module
  • Move logs/ back to project root after it was misplaced in Restructure logs.py into a module; include log_cycle #4921
• Fix path processing throughout the project
  • Move workspace folder to ./auto_gpt_workspace after it was misplaced in Create run_task python hook to interface with benchmarks #4778 (see this comment)
  • Change Config.workspace_path type to Path

Documentation

• amend docs to reflect these changes

Test Plan

Auto-GPT runs fine, tests pass

PR Quality Checklist

• My pull request is atomic and focuses on a single change.
• I have thoroughly tested my changes with multiple different prompts.
• I have considered potential risks and mitigations for my changes.
• I have documented my changes clearly and comprehensively.
• I have not snuck in any "extra" small tweaks changes.
• I have run the following commands against my code to ensure it passes our linters:

  black .
  isort .
  mypy
  autoflake --remove-all-unused-imports --recursive --ignore-init-module-imports --ignore-pass-after-docstring autogpt tests --in-place

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[Auto-GPT-Bot]

You changed AutoGPT's behaviour. The cassettes have been updated and will be merged to the submodule when this Pull Request gets merged.

[codecov]

Codecov Report

Patch coverage: 62.37% and project coverage change: +0.13 🎉

Comparison is base (08a1e22) 50.93% compared to head (0d0245a) 51.07%.

❗ Current head 0d0245a differs from pull request most recent head ef8e6bd. Consider uploading reports for the commit ef8e6bd to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #5032      +/-   ##
==========================================
+ Coverage   50.93%   51.07%   +0.13%     
==========================================
  Files         119      119              
  Lines        4900     4973      +73     
  Branches      650      664      +14     
==========================================
+ Hits         2496     2540      +44     
- Misses       2219     2236      +17     
- Partials      185      197      +12     

Impacted Files	Coverage Δ
autogpt/cli.py	0.00% <0.00%> (ø)
autogpt/commands/execute_code.py	71.96% <ø> (ø)
autogpt/llm/__init__.py	100.00% <ø> (ø)
autogpt/llm/providers/openai.py	89.07% <ø> (ø)
autogpt/memory/vector/utils.py	75.60% <ø> (+3.51%)	⬆️
autogpt/plugins/__init__.py	72.95% <ø> (-0.17%)	⬇️
autogpt/prompts/prompt.py	41.50% <0.00%> (ø)
autogpt/agents/agent.py	50.00% <47.12%> (-4.12%)	⬇️
autogpt/main.py	39.88% <50.00%> (+16.19%)	⬆️
autogpt/agents/base.py	69.23% <69.23%> (ø)
... and 15 more

... and 1 file with indirect coverage changes

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