Change API and structs to camelCase (#4386)

* Change API inputs/outputs and structs to camelCase

* Fix fields and password history

* Use convert_json_key_lcase_first

* Make sends lowercase

* Update admin and templates

* Update org revoke

* Fix sends expecting size to be a string on mobile

* Convert two-factor providers to string

src/db/models/folder.rs

@@ -43,10 +43,10 @@ impl Folder {
         use crate::util::format_date;
 
         json!({
-            "Id": self.uuid,
-            "RevisionDate": format_date(&self.updated_at),
-            "Name": self.name,
-            "Object": "folder",
+            "id": self.uuid,
+            "revisionDate": format_date(&self.updated_at),
+            "name": self.name,
+            "object": "folder",
         })
     }
 }