feat: add all_project_types to search results (#6654)

* feat: add all_project_types to search results

* update docs

apps/docs/public/openapi.yaml

@@ -692,6 +692,12 @@ components:
               type: string
               description: The ID of the project
               example: AABBCCDD
+            all_project_types:
+              type: array
+              items:
+                type: string
+              description: All project types across every version of the project, unlike `project_type` which only reflects a version-specific type
+              example: [mod, plugin, datapack]
             author:
               type: string
               description: The username of the project's author
@@ -748,6 +754,7 @@ components:
             - client_side
             - server_side
             - project_id
+            - all_project_types
             - author
             - versions
             - follows
@@ -1948,6 +1955,7 @@ paths:
 
             These are the most commonly used facet types:
             - `project_type`
+            - `all_project_types` (matches against every project type across all of the project's versions, not just the primary/version-specific type)
             - `categories` (loaders are lumped in with categories in search)
             - `versions`
             - `client_side`