Theme development

I need to have a left sidebar with navigation, but I would also like that sidebar to sit below the main content div in the html output, so that one will not have to scroll past the entire menu for every single page view. How would I go about to do this? 

I'm using bootstrap theme and my drupal core is 9.0.8.

My sub-theme name is "metiti" and my content type machine name is "article_type".

When a file is added "node--article-type.html.twig" it does not work correctly.

I wrote the below code into metiti.theme file and cleared the cache but it still does not work. what I'm doing wrong?

I'm struggling to make template suggestions like IMAGE--BLOCK-TYPE or IMAGE--FIELD-TYPE. I have three different block types(image1, image2, image3) with one image field(field_image_1, field_image_2 and field_image_3). And I don't know how to get suggestion like

image--block_image1.html.twig

image--block_image2.html.twig

image--block_image3.html.twig

or

image--field_image_1.html.twig

image--field_image_2.html.twig

image--field_image_3.html.twig

Is there any way to pass variable between two hooks

I have a node template, node--newsletter.html.twig that has access to a custom variable field_download_link .  its a boolean and I can access it in the template via {{content.field_download_link[0]}}

the node template calls a field template via {{ content.field_nl_articles }}

from within field-articles.html.twig I would like to reference content.field_download_link from node--newsletter.html.twig (or pass the variable from the node template to the field template...either way I dont care, just need to see the value in the field template)

Hi, I have a standard Document media type with a field of filename in addition to the standard fields for the type.  I'm then using the Media Library in a text editor to embed a link onto a page for example.  Right now, it's happily printing out the original filename as a link, but I can't think of a way to pass the new custom filename into the file-link.html.twig so that I can render it instead of the original.

Any suggestions on how I can do this or something equivalent would be greatly appreciated!

Hello everyone,

I am new to drupal and I wanted to ask you for help to make a view of group types to place it as the main page of my website, where it shows on the left side a single group list item and on the right side 4 group list items in grid shape .. When making the view as a block it does not show me the option to publish it on the main page as it appears in a normal content .. I accept suggestion for the cover of my website I am using Bootstrap for Drupal Base Distrib as theme. Thanks