Localize toolbar button titles using localized object

Updated toolbar button titles to reference properties from the `localized` object instead of hardcoded strings. This enhances internationalization support by allowing button labels to adapt to different languages. Buttons affected include "Share", "Logout", "Copy Link", "Reject", and "Reset".

EnvelopeGenerator.Web/wwwroot/js/ui.js

@@ -91,7 +91,7 @@ function getWritableItems(callback) {
       type: 'custom',
       id: 'button-share',
       className: 'button-share',
-      title: 'Teilen',
+      title: localized.share,
       onPress() {
         callback('SHARE')
       },
@@ -103,7 +103,7 @@ function getWritableItems(callback) {
       type: 'custom',
       id: 'button-logout',
       className: 'button-logout',
-      title: 'logout',
+      title: localized.logout,
       onPress() {
         callback('LOGOUT')
       },
@@ -128,7 +128,7 @@ function getReadOnlyItems(callback) {
       type: 'custom',
       id: 'button-copy-url',
       className: 'button-copy-url',
-      title: 'Teilen',
+      title: localized.copyLink,
       onPress() {
         callback('COPY_URL')
       },
@@ -158,7 +158,7 @@ function getMobileWritableItems(callback) {
       type: 'custom',
       id: 'button-reject',
       className: 'button-reject',
-      title: 'Ablehnen',
+      title: localized.reject,
       onPress() {
         callback('REJECT')
       },
@@ -173,7 +173,7 @@ function getMobileWritableItems(callback) {
       type: 'custom',
       id: 'button-reset',
       className: 'button-reset',
-      title: 'Zurücksetzen',
+      title: localized.reset,
       onPress() {
         callback('RESET')
       },