Docs revamp

[omri374]

Docs:

• Reorganized the navigation structure based on docs of similar packages. The new structure is the following:

 - Presidio: 
    - Home
    - Installation
    - FAQ
 - Quick start: 
    - Home
    - Text
    - Images
    - Semi/Structured data
 - Learn Presidio:
      - Home
      - Concepts
      - Tutorial
      - Text de-identification
          - Home
          - Presidio Analyzer
          - Presidio Anonymizer
      - Image de-identification
      - Structured and Semi-structured
      - PII detection evaluation
 - Resources:
      - Supported entities
      - Community
      - Change log
      - Setting up a development environment
      - Build and release process
      - Changes from V1 to V2
      - Python API reference
      - REST API reference
   - Samples:
     - ... 

• Added new sections: concepts, evaluation, quick starts (with very simple guidelines)
• Fixed docstrings issues in packages
• Fixed typos across the docs
• Updated tutorial and added a notebook on no-code configuration
• Added a missing notebook on ner model configuration
• Samples are now part of the nav

Live version: https://omri374.github.io/presidio/

Copilot reviewed 33 out of 48 changed files in this pull request and generated no comments.

Files not reviewed (15)

• docs/api/structured_python.md: Evaluated as low risk
• docs/faq.md: Evaluated as low risk
• docs/evaluation/index.md: Evaluated as low risk
• docs/community.md: Evaluated as low risk
• docs/anonymizer/index.md: Evaluated as low risk
• docs/api.md: Evaluated as low risk
• docs/api/analyzer_python.md: Evaluated as low risk
• docs/api/anonymizer_python.md: Evaluated as low risk
• docs/analyzer/customizing_nlp_models.md: Evaluated as low risk
• docs/analyzer/developing_recognizers.md: Evaluated as low risk
• docs/image-redactor/index.md: Evaluated as low risk
• docs/analyzer/nlp_engines/transformers.md: Evaluated as low risk
• docs/anonymizer/adding_operators.md: Evaluated as low risk
• CONTRIBUTING.md: Evaluated as low risk
• docs/getting_started.md: Evaluated as low risk

[omri374]

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