Add maxColumns Configuration to Columns Tool

[zorexsalvo]

Changes

• Dynamically generate column controls based on maxColumns
• Add dynamic support to the _updateCols function

The columns tool now accepts a maxColumns parameter.
Example usage:

columns: {
  class: editorjsColumns,
  config: {
    EditorJsLibrary: EditorJS,
    tools: columnTools,
    maxColumns: 4,
  }
}

this extends the maximum number of columns a user can create to 4.

Note: PR is still in draft state.

[calumk]

Did you get this to a state where you would open a pull?

I would consider it as long as it doesn't break any existing implementations

[zorexsalvo]

Hi @calumk, thanks for taking a look. It’s still in draft state as I’m still reading the Editor.js API. And yes, I made sure that it will not break any existing implementation.

[calumk]

Yes the editors API is... Not the best documented!
Good luck!

[zorexsalvo]

Hi @calumk thank you for your patience. This is now ready for review!