specify npm prefix and stylelint configs and adjust ignores

dev-tools/.stylelintignore

@@ -1 +1,2 @@
 **/vendor/**
+**/fonts/**

dev-tools/.stylelintrc.js

@@ -1,7 +1,7 @@
 /* global module */
 
 module.exports = {
-    "extends": "stylelint-config-standard",
+    "extends": "stylelint-config-standard-scss",
 
     "plugins": [
         "stylelint-order"

dev-tools/Dockerfile

@@ -2,13 +2,14 @@ FROM python:3.9
 
 ENV PYTHONUNBUFFERED 1
 
-RUN mkdir /app
-WORKDIR /app
+WORKDIR /app/dev-tools
 
-COPY package.json requirements.txt .stylelintrc.js .stylelintignore /app/
+COPY package.json requirements.txt .stylelintrc.js .stylelintignore /app/dev-tools/
 RUN pip install -r requirements.txt
 
 RUN apt-get update && apt-get install -y curl
 RUN curl -sL https://deb.nodesource.com/setup_17.x | bash -
 RUN apt-get install -y nodejs && apt-get clean
 RUN npm install .
+
+WORKDIR /app

dev-tools/package.json

@@ -11,6 +11,7 @@
     "stylelint-config-recommended": "^7.0.0",
     "stylelint-config-standard": "^25.0.0",
     "stylelint-order": "^5.0.0",
+    "stylelint-config-standard-scss": "^3.0.0",
     "watch": "^0.13.0"
   },
   "dependencies": {