lang_en: Reworded some strings, and removed whitespace

resources/lang/en/app.php

@@ -60,7 +60,7 @@ return [
     'apps.username' => 'Username',
     'apps.password' => 'Password',
     'apps.config' => 'Config',
-    'apps.apikey' => 'Api Key',
+    'apps.apikey' => 'API Key',
     'apps.enable' => 'Enable',
     'apps.tag_list' => 'Tags list',
     'apps.add_tag' => 'Add tag',
@@ -68,7 +68,7 @@ return [
     'apps.tags' => 'Tags',
     'apps.override' => 'If different to main url',
 
-    'url' => 'Url',
+    'url' => 'URL',
     'title' => 'Title',
     'delete' => 'Delete',
     'optional' => 'Optional',
@@ -84,8 +84,8 @@ return [
     'alert.success.tag_deleted' => 'Tag deleted successfully',
     'alert.success.tag_restored' => 'Tag restored successfully',
 
-    'alert.success.setting_updated' => 'You have successfully edited this Setting',
+    'alert.success.setting_updated' => 'You have successfully edited this setting',
-    'alert.error.not_exist' => 'This Setting does not exist.',
+    'alert.error.not_exist' => 'This setting does not exist.',
 
 
 ];