feat (WIP): bring png OCR scanning support (#1670)

* Add pytesseract

* Add simple ocr endpoint

replace extension argument

* feat/ocr-editor gui

* fix frontend linting issues

* Add service unit tests

* Add split text modes & single ingredient/instruction editing

* make split mode really reactive

* Remove default step and ingredient

* make the linter haappy

* Accept only image uploads

* Add automatic recipe title suggestion

* Correct regex

* fix incorrect array.map method usage

* make the linter happy again

* Swap route to use asset name

* Rearange buttons

* fix test data

* feat: Allow making image the recipe image

* Add translation

* Make the linter happy

* Restrict function setPropertyValueByPath generic

* Restrict template literal type

* Add a more friendly icon to creation page

* update poetry lock file

* Correct sloppy ocr classes

* Make MyPy happy

* Rewrite safer tests

* Add tesseract to backend test CI container dependencies

* Make canvas element a component global

* Remove unwanted spaces in selected text

* Add way to know if recipe was created with ocr

* Access to ocr-editor for ocr recipes

* Update Alembic revision

* Make the frontend build

* Fix scrolling offset bug

* Allow creation of recipes with custom settings

* Fix rebasing mistakes

* Add format_tsv_output test

* Exclude the tests data directory only

* Enforce camelCase for frontend functions

* Remove import of unused component

* Fix type and class initialization

* Add multi-language support

* Highlight words in mount

* Fix image ratio bug

* Better ocr creation page

* Revert awkward feature to scroll in Selection mode

* Rebasing alembic migrations sux

* Remove obsolete getShared function

* Add function docstring

* Move down ocr creation option

* Make toolbar icons more generic

* Show help at the bottom of the page

* move ocr types to own file

* Use template ref for the canvas

* Use i18n.tc to get strings directly

* Correct naming mistake

* Move Ocr editor to own directory

* Create Ocr Editor parts

* Safeguard recipe properties access

* Add loading frontend animation due to longer request time

* minor cleanup chores

Co-authored-by: Miroito <alban.vachette@gmail.com>

poetry.lock

@@ -821,7 +821,7 @@ requests = ["requests"]
 name = "packaging"
 version = "21.3"
 description = "Core utilities for Python packages"
-category = "dev"
+category = "main"
 optional = false
 python-versions = ">=3.6"
 
@@ -1083,6 +1083,18 @@ category = "dev"
 optional = false
 python-versions = ">=3.7"
 
+[[package]]
+name = "pytesseract"
+version = "0.3.9"
+description = "Python-tesseract is a python wrapper for Google's Tesseract-OCR"
+category = "main"
+optional = false
+python-versions = ">=3.7"
+
+[package.dependencies]
+packaging = ">=21.3"
+Pillow = ">=8.0.0"
+
 [[package]]
 name = "pytest"
 version = "6.2.5"
@@ -2309,6 +2321,10 @@ pyrsistent = [
     {file = "pyrsistent-0.18.1-cp39-cp39-win_amd64.whl", hash = "sha256:e24a828f57e0c337c8d8bb9f6b12f09dfdf0273da25fda9e314f0b684b415a07"},
     {file = "pyrsistent-0.18.1.tar.gz", hash = "sha256:d4d61f8b993a7255ba714df3aca52700f8125289f84f704cf80916517c46eb96"},
 ]
+pytesseract = [
+    {file = "pytesseract-0.3.9-py2.py3-none-any.whl", hash = "sha256:fecda37d1e4eaf744c657cd03a5daab4eb97c61506ac5550274322c8ae32eca2"},
+    {file = "pytesseract-0.3.9.tar.gz", hash = "sha256:7e2bafc7f48d1bb71443ce4633a56f5e21925a98f220a36c336297edcd1956d0"},
+]
 pytest = [
     {file = "pytest-6.2.5-py3-none-any.whl", hash = "sha256:7310f8d27bc79ced999e760ca304d69f6ba6c6649c0b60fb0e04a4a77cacc134"},
     {file = "pytest-6.2.5.tar.gz", hash = "sha256:131b36680866a76e6781d13f101efb86cf674ebb9762eb70d3082b6f29889e89"},