[UI] Button New: Generate new Matrix

[discoleo]

Button New

Put a New button on both pages Percolation Process and Linear Channels:

• add the button to the bottom of the page (add another row);
• see: Using Action Buttons

  https://shiny.rstudio.com/articles/action-buttons.html

The ids can be: newSimple and newLinear. The label can be just "New".

Example Code

observeEvent(input$newLinear, {
    imageChannelGenerator();
})