Localized various strings.

Confirm title, corresponding messages, welcome, and media type dropdown.

pages/localMedia/folders/_id.vue

@@ -100,7 +100,7 @@ export default {
         deleteMessage = `Are you sure you want to remove this folder and ${this.localLibraryItems.length} items? (does not delete anything in your file system)`
       }
       const { value } = await Dialog.confirm({
-        title: 'Confirm',
+        title: this.$strings.HeaderConfirm,
         message: deleteMessage
       })
       if (value) {

pages/localMedia/folders/index.vue

@@ -22,7 +22,7 @@
       </div>
       <div v-if="!isAndroid10OrBelow || overrideFolderRestriction" class="flex border-t border-fg/10 my-4 py-4">
         <div class="flex-grow pr-1">
-          <ui-dropdown v-model="newFolderMediaType" placeholder="Select media type" :items="mediaTypeItems" />
+          <ui-dropdown v-model="newFolderMediaType" :placeholder="$strings.LabelSelectMediaType" :items="mediaTypeItems" />
         </div>
         <ui-btn small class="w-28" color="success" @click="selectFolder">{{ $strings.ButtonNewFolder }}</ui-btn>
       </div>

pages/localMedia/item/_id.vue

@@ -369,7 +369,7 @@ export default {
         confirmMessage += ' The file on the server will be unaffected.'
       }
       const { value } = await Dialog.confirm({
-        title: 'Confirm',
+        title: this.$strings.HeaderConfirm,
         message: confirmMessage
       })
       if (value) {
@@ -395,7 +395,7 @@ export default {
         confirmMessage += ' The file on the server will be unaffected.'
       }
       const { value } = await Dialog.confirm({
-        title: 'Confirm',
+        title: this.$strings.HeaderConfirm,
         message: confirmMessage
       })
       if (value) {
@@ -412,7 +412,7 @@ export default {
         confirmMessage += ' The files on the server and your progress will be unaffected.'
       }
       const { value } = await Dialog.confirm({
-        title: 'Confirm',
+        title: this.$strings.HeaderConfirm,
         message: confirmMessage
       })
       if (value) {