Change wording from 'share' to 'invite'

This was updated in the designs.

src/button/InviteButton.tsx

@@ -0,0 +1,31 @@
+/*
+Copyright 2023 New Vector Ltd
+
+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 { ComponentPropsWithoutRef, FC } from "react";
+import { Button } from "@vector-im/compound-web";
+import { useTranslation } from "react-i18next";
+import { ReactComponent as UserAddSolidIcon } from "@vector-im/compound-design-tokens/icons/user-add-solid.svg";
+
+export const InviteButton: FC<
+  Omit<ComponentPropsWithoutRef<"button">, "children">
+> = (props) => {
+  const { t } = useTranslation();
+  return (
+    <Button kind="secondary" size="sm" Icon={UserAddSolidIcon} {...props}>
+      {t("Invite")}
+    </Button>
+  );
+};