Title of imported files are not updated until you edit the chapter or enter a different chapter
As in https://gitlab.coko.foundation/ketida/ketida/-/issues/747
Expected behavior
Title of chapters should match in TOC page, in the heading 1 content of the chapter, and in the list of chapters in the editor.
Current behavior
Currently the title of an imported file in the list of chapters in the editor is the name of the file uploaded, instead of the Title (H1) of the document. According to others testing, sometimes this title in the list of chapters updates to use the Title (H1) when you open the chapter, but during my testing the title of the chapter in the list of chapters doesn't update until you create a new chapter, edit the current chapter, and perform some other actions. This affects our outputs because this chapter name from the list of chapters is used in the Table of Contents in the PDF exported.
Possible solution
When the chapter is opened, send the chapter title