Revert TOML 1.1 syntax

[pawamoy]

Description

As reported in zensical/zensical#860, TOML 1.1 is not widely supported in the ecosystem. We risk having users copy-paste examples from our docs and thinking this is broken syntax, reporting it in our bug trackers or getting confused. Formatters can even corrupt the syntax if they don't support TOML 1.1, leaving the user with actually broken TOML. We should wait for the authoring ecosystem to be more ready before embracing TOML 1.1 in our bootstrapped configuration file and our documentation examples.

Related links

Our docs:

• see docs: use TOML 1.1 inline tables (#104) #146

Additional links:

• Provided zensical.toml is not a valid TOML file zensical#860
• https://youtrack.jetbrains.com/projects/IJPL/issues/IJPL-232410/TOML-Multi-line-inline-table-support
• https://marketplace.visualstudio.com/items?itemName=tamasfe.even-better-toml
• https://github.com/tree-sitter/tree-sitter/wiki/List-of-parsers
• https://github.com/ikatyang/tree-sitter-toml
• https://github.com/tree-sitter-grammars/tree-sitter-toml
• https://tombi-toml.github.io/tombi/

Proposed change

We should revert our latest changes regarding configuration examples, and watch from afar how the following components evolve to support TOML 1.1:

• Taplo / Even Better TOML (VSCode)
• JetBrains TOML native support
• TreeSitter grammars (powering Helix, neovim, emacs?)

Before submitting

• I have read and followed the documentation issue guidelines.
• I have attached the links to the affected sections of the documentation

[squidfunk]

Fixed in 1758f1d.