Add internationalisation module and utilities

.gitignore

@@ -96,3 +96,6 @@ sw.*
 # pnpm files
 pnpm-lock.yaml
 /.npmrc
+
+# Auto-generated messages types (annoying to rebase)
+types/i18n-messages.d.ts

.prettierrc

@@ -1,5 +1,16 @@
 {
   "semi": false,
   "singleQuote": true,
-  "endOfLine": "auto"
+  "endOfLine": "auto",
+  "plugins": ["prettier-plugin-jsdoc"],
+  "overrides": [
+    {
+      "files": ["i18n/*/*.html"],
+      "options": {
+        "proseWrap": "never",
+        "htmlWhitespaceSensitivity": "strict",
+        "printWidth": 9999999999
+      }
+    }
+  ]
 }

assets/styles/utils.scss

@@ -14,3 +14,17 @@ body {
 .text-container p {
   line-height: 1.3;
 }
+
+.sr-only {
+  border: 0 !important;
+  clip: rect(1px, 1px, 1px, 1px) !important;
+  -webkit-clip-path: inset(50%) !important;
+  clip-path: inset(50%) !important;
+  height: 1px !important;
+  margin: -1px !important;
+  overflow: hidden !important;
+  padding: 0 !important;
+  position: absolute !important;
+  width: 1px !important;
+  white-space: nowrap !important;
+}