Add an option to ignore (block) a user when reporting their events (#8471)

* Add an option to ignore (block) a user when reporting their events

This is primarily useful if the content being reported really doesn't belong on your screen, and the room moderators are slow to react.

Ideally we'd use the word "block" instead of "ignore", but we call it "ignore user" everywhere else. See https://github.com/vector-im/element-web/issues/19590 for further context on the word choice.

This change includes a minor refactor to the styles of labelled toggles (for reusability).

* Appease the linter

* Use a checkbox instead of toggle in the dialog

* Update classnames handling for toggle switch

* Appease the linter

src/components/views/elements/LabelledCheckbox.tsx

@@ -0,0 +1,44 @@
+/*
+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 React from "react";
+
+import StyledCheckbox from "./StyledCheckbox";
+
+interface IProps {
+    // The value for the checkbox
+    value: boolean;
+    // The translated label for the checkbox
+    label: string;
+    // Optional translated string to show below the checkbox
+    byline?: string;
+    // Whether or not to disable the checkbox
+    disabled?: boolean;
+    // The function to call when the value changes
+    onChange(checked: boolean): void;
+}
+
+const LabelledCheckbox: React.FC<IProps> = ({ value, label, byline, disabled, onChange }) => {
+    return <label className="mx_LabelledCheckbox">
+        <StyledCheckbox disabled={disabled} checked={value} onChange={e => onChange(e.target.checked)} />
+        <div className="mx_LabelledCheckbox_labels">
+            <span className="mx_LabelledCheckbox_label">{ label }</span>
+            { byline ? <span className="mx_LabelledCheckbox_byline">{ byline }</span> : null }
+        </div>
+    </label>;
+};
+
+export default LabelledCheckbox;

src/components/views/elements/LabelledToggleSwitch.tsx

@@ -1,5 +1,5 @@
 /*
-Copyright 2019 - 2021 The Matrix.org Foundation C.I.C.
+Copyright 2019 - 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.
@@ -15,6 +15,7 @@ limitations under the License.
 */
 
 import React from "react";
+import classNames from "classnames";
 
 import ToggleSwitch from "./ToggleSwitch";
 
@@ -35,7 +36,7 @@ interface IProps {
 }
 
 export default class LabelledToggleSwitch extends React.PureComponent<IProps> {
-    render() {
+    public render() {
         // This is a minimal version of a SettingsFlag
 
         let firstPart = <span className="mx_SettingsFlag_label">{ this.props.label }</span>;
@@ -52,7 +53,9 @@ export default class LabelledToggleSwitch extends React.PureComponent<IProps> {
             secondPart = temp;
         }
 
-        const classes = `mx_SettingsFlag ${this.props.className || ""}`;
+        const classes = classNames("mx_SettingsFlag", this.props.className, {
+            "mx_SettingsFlag_toggleInFront": this.props.toggleInFront,
+        });
         return (
             <div className={classes}>
                 { firstPart }