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-fef7802edefa1a6957fa43ccf64b987c3547294f0c8581028ac6b83de42b3a00.json

@@ -0,0 +1,32 @@
+{
+  "db_name": "PostgreSQL",
+  "query": "\n            SELECT id, name, donation FROM link_platforms\n            ",
+  "describe": {
+    "columns": [
+      {
+        "ordinal": 0,
+        "name": "id",
+        "type_info": "Int4"
+      },
+      {
+        "ordinal": 1,
+        "name": "name",
+        "type_info": "Varchar"
+      },
+      {
+        "ordinal": 2,
+        "name": "donation",
+        "type_info": "Bool"
+      }
+    ],
+    "parameters": {
+      "Left": []
+    },
+    "nullable": [
+      false,
+      false,
+      false
+    ]
+  },
+  "hash": "fef7802edefa1a6957fa43ccf64b987c3547294f0c8581028ac6b83de42b3a00"
+}