FEATURE: Category setting to allow unlimited first post edits by the owner of the topic (#12690)

This PR adds a new category setting which is a column in the `categories` table, `allow_unlimited_owner_edits_on_first_post`.

What this does is:

* Inside the `can_edit_post?` method of `PostGuardian`, if the current user editing a post is the owner of the post, it is the first post, and the topic's category has `allow_unlimited_owner_edits_on_first_post`, then we bypass the check for `LimitedEdit#edit_time_limit_expired?` on that post.
* Also, similar to wiki topics, in `PostActionNotifier#after_create_post_revision` we send a notification to all users watching a topic when the OP is edited in a topic with the category setting `allow_unlimited_owner_edits_on_first_post` enabled.

This is useful for forums where there is a Marketplace or similar category, where topics are created and then updated indefinitely by the OP rather than the OP making new topics or additional replies. In a way this acts similar to a wiki that only one person can edit.

spec/requests/api/schemas/json/category_create_response.json

@@ -131,6 +131,15 @@
         "min_tags_from_required_group": {
           "type": "integer"
         },
+        "allowed_tags": {
+          "type": "array"
+        },
+        "allowed_tag_groups": {
+          "type": "array"
+        },
+        "allow_global_tags": {
+          "type": "boolean"
+        },
         "required_tag_group_name": {
           "type": [
             "string",
@@ -158,6 +167,9 @@
         "auto_close_based_on_last_post": {
           "type": "boolean"
         },
+        "allow_unlimited_owner_edits_on_first_post": {
+          "type": "boolean"
+        },
         "group_permissions": {
           "type": "array",
           "items": [
@@ -261,6 +273,7 @@
         "available_groups",
         "auto_close_hours",
         "auto_close_based_on_last_post",
+        "allow_unlimited_owner_edits_on_first_post",
         "group_permissions",
         "email_in",
         "email_in_allow_strangers",

spec/requests/api/schemas/json/category_topics_response.json

@@ -46,6 +46,9 @@
         "per_page": {
           "type": "integer"
         },
+        "top_tags": {
+          "type": "array"
+        },
         "topics": {
           "type": "array",
           "items": [

spec/requests/api/schemas/json/category_update_response.json

@@ -134,6 +134,15 @@
         "min_tags_from_required_group": {
           "type": "integer"
         },
+        "allowed_tags": {
+          "type": "array"
+        },
+        "allowed_tag_groups": {
+          "type": "array"
+        },
+        "allow_global_tags": {
+          "type": "boolean"
+        },
         "required_tag_group_name": {
           "type": [
             "string",
@@ -161,6 +170,9 @@
         "auto_close_based_on_last_post": {
           "type": "boolean"
         },
+        "allow_unlimited_owner_edits_on_first_post": {
+          "type": "boolean"
+        },
         "group_permissions": {
           "type": "array",
           "items": [
@@ -264,6 +276,7 @@
         "available_groups",
         "auto_close_hours",
         "auto_close_based_on_last_post",
+        "allow_unlimited_owner_edits_on_first_post",
         "group_permissions",
         "email_in",
         "email_in_allow_strangers",