This adds a new button to the Markdown toolbar, which allows creating the structure of a Markdown table. This makes it easier to wok with tables, as creating the structure by hand is annoying. Screenshots: https://codeberg.org/attachments/8bb00059-caa7-4453-b26c-15e4b7b93c83 https://codeberg.org/attachments/581e695c-33eb-4b81-9c63-a944aab443d9 Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/5589 Reviewed-by: Otto <otto@codeberg.org> Co-authored-by: JakobDev <jakobdev@gmx.de> Co-committed-by: JakobDev <jakobdev@gmx.de>
