Make Loyalty Card Keychain app name translatable

Because, well, the app itself uses different names in different
countries

CHANGELOG.md

@@ -6,7 +6,7 @@ Changes:
 
 - Support importing [Voucher Vault](https://github.com/tim-smart/vouchervault/) exports
 - Option to keep the screen on while viewing a loyalty card
-- Option to suspend the lock screen while viewing a loyalty card 
+- Option to suspend the lock screen while viewing a loyalty card
 
 ## v1.9.2 (2021-02-24)
 

app/src/main/res/values/arrays.xml

@@ -2,7 +2,7 @@
 <resources>
     <string-array name="import_types_array">
         <item>Catima</item>
-        <item>Loyalty Card Keychain</item>
+        <item>@string/app_loyalty_card_keychain</item>
         <item>Voucher Vault</item>
     </string-array>
 </resources>

app/src/main/res/values/strings.xml

@@ -156,4 +156,5 @@
 
     <string name="parsingBalanceFailed"><xliff:g>%s</xliff:g> does not seem to be a valid balance.</string>
     <string name="chooseImportType">Import data from which app?</string>
+    <string name="app_loyalty_card_keychain">Loyalty Card Keychain</string>
 </resources>