Add support for LaTeX inline and block expressions. (#4446)

* Add support for LaTeX inline and block expressions. (#4364)

Co-authored-by: Tom Moor <tom@getoutline.com>

* tsc

* Show heading markers when LaTeX block is being edited

* Tab to space, name katex chunk

* Fork htmldiff, add support for math nodes

Co-authored-by: luisbc92 <luiscarlos.banuelos@gmail.com>

package.json

@@ -51,6 +51,7 @@
     "@babel/plugin-transform-regenerator": "^7.10.4",
     "@babel/preset-env": "^7.16.0",
     "@babel/preset-react": "^7.16.0",
+    "@benrbray/prosemirror-math": "^0.2.2",
     "@bull-board/api": "^4.2.2",
     "@bull-board/koa": "^4.6.2",
     "@dnd-kit/core": "^6.0.5",
@@ -113,6 +114,7 @@
     "json-loader": "0.5.7",
     "jsonwebtoken": "^8.5.0",
     "jszip": "^3.10.1",
+    "katex": "^0.16.3",
     "kbar": "0.1.0-beta.28",
     "koa": "^2.13.4",
     "koa-body": "^4.2.0",
@@ -246,6 +248,7 @@
     "@types/ioredis": "^4.28.1",
     "@types/jest": "^28.1.6",
     "@types/jsonwebtoken": "^8.5.8",
+    "@types/katex": "^0.14.0",
     "@types/koa": "^2.13.4",
     "@types/koa-compress": "^4.0.3",
     "@types/koa-helmet": "^6.0.4",
@@ -309,6 +312,7 @@
     "babel-plugin-transform-typescript-metadata": "^0.3.2",
     "babel-plugin-tsconfig-paths-module-resolver": "^1.0.3",
     "concurrently": "^7.4.0",
+    "css-loader": "5.2.6",
     "enzyme": "^3.11.0",
     "enzyme-adapter-react-16": "^1.15.6",
     "eslint": "^7.32.0",
@@ -335,6 +339,7 @@
     "prettier": "^2.0.5",
     "react-refresh": "^0.14.0",
     "rimraf": "^2.5.4",
+    "style-loader": "2.0.0",
     "terser-webpack-plugin": "^4.1.0",
     "typescript": "^4.7.4",
     "url-loader": "^4.1.1",