[feature] Instance rules (#2125)

* init instance rules database model, admin api

* expose instance rules in public instance api

* public /api/v1/instance/rules route

* GET ruleById

* createRule route

* createRule auth check

* updateRule

* deleteRule

* list rules on about page

* ruleGet auth

* add about page ids for anchors

* process and store adding violated rules to reports

* admin api models for instance rules

* instance rule edit frontend

* change rule inputs to textareas

* database fixes after rebase (#2124)

* remove unused imports

* fix db migration column name

* fix tests

* fix more tests

* fix postgres error with wrongly used Ident

* add some tests, fiddle with rule model a bit, fix postgres migration

* swagger docs

---------

Co-authored-by: tsmethurst <tobi.smethurst@protonmail.com>

internal/api/client/instance/instance.go

@@ -28,6 +28,7 @@ const (
 	InstanceInformationPathV1 = "/v1/instance"
 	InstanceInformationPathV2 = "/v2/instance"
 	InstancePeersPath         = InstanceInformationPathV1 + "/peers"
+	InstanceRulesPath         = InstanceInformationPathV1 + "/rules"
 	PeersFilterKey            = "filter" // PeersFilterKey is used to provide filters to /api/v1/instance/peers
 )
 
@@ -47,4 +48,6 @@ func (m *Module) Route(attachHandler func(method string, path string, f ...gin.H
 
 	attachHandler(http.MethodPatch, InstanceInformationPathV1, m.InstanceUpdatePATCHHandler)
 	attachHandler(http.MethodGet, InstancePeersPath, m.InstancePeersGETHandler)
+
+	attachHandler(http.MethodGet, InstanceRulesPath, m.InstanceRulesGETHandler)
 }