Hard caps on creating projects/orgs/collections (#4430)

* implement backend limits on project creation

* implement collection, org creation hard caps

* Fix limit api

* Fix clippy

* Fix limits

* Update sqlx queries

* Address PR comments on user limit structure

* sqlx prepare and clippy

* fix test maybe

.sqlx/query-79040825457845cc078be7b3293804d6fb2e05ffce07e7b4248d8705d6fc6e61.json

@@ -0,0 +1,15 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n            UPDATE mods\n            SET moderation_message_body = $1\n            WHERE (id = $2)\n            ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Varchar",
+        "Int8"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "79040825457845cc078be7b3293804d6fb2e05ffce07e7b4248d8705d6fc6e61"
+}