Support org/user level projects (#22235)

Fix #13405

<img width="1151" alt="image"
src="https://user-images.githubusercontent.com/81045/209442911-7baa3924-c389-47b6-b63b-a740803e640e.png">

Co-authored-by: 6543 <6543@obermui.de>

routers/web/org/projects_test.go

@@ -0,0 +1,28 @@
+// Copyright 2022 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package org_test
+
+import (
+	"testing"
+
+	"code.gitea.io/gitea/models/unittest"
+	"code.gitea.io/gitea/modules/test"
+	"code.gitea.io/gitea/routers/web/org"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestCheckProjectBoardChangePermissions(t *testing.T) {
+	unittest.PrepareTestEnv(t)
+	ctx := test.MockContext(t, "user2/-/projects/4/4")
+	test.LoadUser(t, ctx, 2)
+	ctx.ContextUser = ctx.Doer // user2
+	ctx.SetParams(":id", "4")
+	ctx.SetParams(":boardID", "4")
+
+	project, board := org.CheckProjectBoardChangePermissions(ctx)
+	assert.NotNil(t, project)
+	assert.NotNil(t, board)
+	assert.False(t, ctx.Written())
+}