chore: enforce conventional commit at git commit

.commitlintrc.json

@@ -0,0 +1,3 @@
+{
+  "extends": ["@commitlint/config-conventional"]
+}

.husky/commit-msg

@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+npx --no -- commitlint --edit "$1"

.husky/pre-commit

@@ -0,0 +1,4 @@
+#!/bin/sh
+. "$(dirname "$0")/_/husky.sh"
+
+#npm test

package.json

@@ -8,11 +8,16 @@
 		"lint:styles": "stylelint \"**/*.{less,css}\"",
 		"lint:i18n": "banana-checker --requireLowerCase=0 i18n/",
 		"doc": "jsdoc -c jsdoc.json",
-		"minify-svg": "svgo --config=.svgo.config.js -q -r -f resources/"
+		"minify-svg": "svgo --config=.svgo.config.js -q -r -f resources/",
+		"test": "npm run lint",
+		"prepare": "husky install"
 	},
 	"devDependencies": {
+		"@commitlint/cli": "^16.2.3",
+		"@commitlint/config-conventional": "^16.2.1",
 		"eslint-config-wikimedia": "0.22.1",
 		"grunt-banana-checker": "0.9.0",
+		"husky": "^7.0.4",
 		"jsdoc": "3.6.10",
 		"jsdoc-wmf-theme": "0.0.5",
 		"stylelint-config-idiomatic-order": "8.1.0",