Translation strings added (#3304)

* Update: `pages/items/_id` toast messages

* Update: account modal strings

* Update: audio file data modal strings

* Update: sleep timer set string

* Update: loading indicator string

* Update: lazy book card strings

* Reorder keys

* Fix: syntax error in LazyBookCard

* Fix: json ordering

* Fix: fix double message definition

* Update: login form toast strings

* Update: batch delete toast

* Update: collection add toast messages

* Replace: toasts in BookShelfToolbar

* Update: playlist edit toasts

* Update: Details tab

* Add: title required string

* Update: ereader toasts

* Update: author toasts, title and name required toasts

* Clean up "no updates" strings

* Change: slug strings

* Update: cover modal toasts

* Change: cancel encode toasts

* Change: failed to share toasts

* Simplify: "renameFail" and "removeFail" toasts

* Fix: ordering

* Change: chapters remove toast

* Update: notification strings

* Revert: loading indicator (error in browser)

* Update: collectionBooksTable toast

* Update: "failed to get" strings

* Update: backup strings

* Update: custom provider strings

* Update: sessions strings

* Update: email strings

* Update sort display translation strings, update podcast episode queue strings to use translation

* Fix loading indicator please wait translation

* Consolidate translations and reduce number of toasts

---------

Co-authored-by: advplyr <advplyr@protonmail.com>

client/components/tables/CustomMetadataProviderTable.vue

@@ -45,7 +45,7 @@ export default {
   methods: {
     removeProvider(provider) {
       const payload = {
-        message: `Are you sure you want remove custom metadata provider "${provider.name}"?`,
+        message: this.$getString('MessageConfirmDeleteMetadataProvider', [provider.name]),
         callback: (confirmed) => {
           if (confirmed) {
             this.$emit('update:processing', true)
@@ -53,12 +53,12 @@ export default {
             this.$axios
               .$delete(`/api/custom-metadata-providers/${provider.id}`)
               .then(() => {
-                this.$toast.success('Provider removed')
+                this.$toast.success(this.$strings.ToastProviderRemoveSuccess)
                 this.$emit('removed', provider.id)
               })
               .catch((error) => {
                 console.error('Failed to remove provider', error)
-                this.$toast.error('Failed to remove provider')
+                this.$toast.error(this.$strings.ToastRemoveFailed)
               })
               .finally(() => {
                 this.$emit('update:processing', false)