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-09ebec1a568edf1959f20b33d8ba2b8edb55d93ada8f2243448865163f555d8d.json

@@ -0,0 +1,16 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n            INSERT INTO shared_instance_users (user_id, shared_instance_id, permissions)\n            VALUES ($1, $2, $3)\n            ",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Left": [
+        "Int8",
+        "Int8",
+        "Int8"
+      ]
+    },
+    "nullable": []
+  },
+  "hash": "09ebec1a568edf1959f20b33d8ba2b8edb55d93ada8f2243448865163f555d8d"
+}