Feature: Typewriter Annotation support

[bfahrenfort]

A lot of people (including myself) want to see the Typewriter annotation from pdf.js implemented in Zotero. I don't know enough about the viewer application to complete it, but this is what I have so far.

New annotation type: freetext

• Named to stay in line with how pdf.js references it internally
• Currently created with the properties specified in Mozilla docs, but not actually a freetext annotation for some reason

New editor mode: typewriter

• Button added to toolbar
• Editor recognizes when the typewriter button in the toolbar is pressed (as a toggle) and enters annotation creation mode
• Created annotation is an image (a highlight box), not a freetext for some reason (I've been basing my implementation off of the image's methods, so I may have missed some call to actually create the annotation somewhere)

New icon: IconFreetext

• Google Material Symbols: Format Italic (converted to path format c/o GIMP)

Other issues:

• The added SVG path-format icon is not displayed in the editor (potentially a problem with registering in webpack? I haven't fully looked through all icon references in the repo)

Help is appreciated--I'd love to see this feature as it would mean I don't have to swap to Okular or something else with just a hint more functionality than Zotero to finish out my workflow.

[bfahrenfort]

This is the object that currently gets created when I use the Typewriter mode, rather than the freetext I specify to create:

[
  {
    "type": "image",
    "color": "#ffd400",
    "position": {
      "pageIndex": 0,
      "rects": [
        [
          355.404,
          114.894,
          519.319,
          144.766
        ]
      ]
    },
    "text": "",
    "comment": "",
    "tags": [],
    "id": "EAI3CTGM",
    "dateCreated": "2023-05-16T22:49:37.470Z",
    "dateModified": "2023-05-16T22:49:37.470Z",
    "authorName": "John",
    "isAuthorNameAuthoritative": true,
    "pageLabel": "1",
    "sortIndex": "00000|003887|00647",
    "image": <a stupidly long hash>
  }
]

[mrtcode]

Already implemented. But thanks anyway.