Add icelandic translation

src/translations/is.ts

@@ -0,0 +1,39 @@
+import { registerTranslation } from '@shoelace-style/localize';
+import type { Translation } from '../utilities/localize.js';
+
+const translation: Translation = {
+  $code: 'is',
+  $name: 'Íslenska',
+  $dir: 'ltr',
+
+  carousel: 'Myndasýning',
+  clearEntry: 'Hreinsa',
+  close: 'Loka',
+  copied: 'Afritað',
+  copy: 'Afrita',
+  currentValue: 'Núverandi gildi',
+  error: 'Villa',
+  goToSlide: (slide, count) => `Fara á glæru ${slide} af ${count}`,
+  hidePassword: 'Fela lykilorð',
+  loading: 'Hleð',
+  nextSlide: 'Næsta glæra',
+  numOptionsSelected: num => {
+    if (num === 0) return 'Ekkert valið';
+    if (num === 1) return '1 valmöguleiki valinn';
+    return `${num} valmöguleikar valdir`;
+  },
+  previousSlide: 'Fyrri glæra',
+  progress: 'Framvinda',
+  remove: 'Eyða',
+  resize: 'Breyta stærð',
+  scrollToEnd: 'Skruna í enda',
+  scrollToStart: 'Skruna í byrjun',
+  selectAColorFromTheScreen: 'Veldu lit fyrir skjáinn',
+  showPassword: 'Sýna lykilorð',
+  slideNum: slide => `Glæra ${slide}`,
+  toggleColorFormat: 'Skipta um litasnið'
+};
+
+registerTranslation(translation);
+
+export default translation;