Enable tsc alwaysStrict, strictBindCallApply, noImplicitThis (#9600)

* Enable tsc alwaysStrict

* Enable tsc strictBindCallApply

* Enable tsc noImplicitThis

* Add d.ts

* Improve types

* Add ?

* Increase coverage

* Improve coverage

test/components/views/Validation-test.ts

@@ -0,0 +1,31 @@
+/*
+Copyright 2022 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import withValidation from "../../../src/components/views/elements/Validation";
+
+describe("Validation", () => {
+    it("should handle 0 rules", () => {
+        const handler = withValidation({
+            rules: [],
+        });
+        return expect(handler({
+            value: "value",
+            focused: true,
+        })).resolves.toEqual(expect.objectContaining({
+            valid: true,
+        }));
+    });
+});