Use accessible button for copy icon.

src/components/views/dialogs/ShareDialog.tsx

@@ -30,6 +30,7 @@ import * as ContextMenu from "../../structures/ContextMenu";
 import {toRightOf} from "../../structures/ContextMenu";
 import {copyPlaintext, selectText} from "../../../utils/strings";
 import StyledCheckbox from '../elements/StyledCheckbox';
+import AccessibleTooltipButton from '../elements/AccessibleTooltipButton';
 
 const socials = [
     {
@@ -210,9 +211,11 @@ export default class ShareDialog extends React.PureComponent<IProps, IState> {
                     >
                         { matrixToUrl }
                     </a>
-                    <a href={matrixToUrl} className="mx_ShareDialog_matrixto_copy" onClick={this.onCopyClick}>
-                        <div>&nbsp;</div>
-                    </a>
+                    <AccessibleTooltipButton
+                        title={_t("Copy")}
+                        onClick={this.onCopyClick}
+                        className="mx_ShareDialog_matrixto_copy"
+                    />
                 </div>
                 { checkbox }
                 <hr />

src/i18n/strings/en_EN.json

@@ -1399,6 +1399,7 @@
     "%(senderDisplayName)s changed the room avatar to <img/>": "%(senderDisplayName)s changed the room avatar to <img/>",
     "This room is a continuation of another conversation.": "This room is a continuation of another conversation.",
     "Click here to see older messages.": "Click here to see older messages.",
+    "Copy": "Copy",
     "Copied!": "Copied!",
     "Failed to copy": "Failed to copy",
     "Add an Integration": "Add an Integration",
@@ -2217,7 +2218,6 @@
     "Confirm your recovery passphrase": "Confirm your recovery passphrase",
     "Store your Security Key somewhere safe, like a password manager or a safe, as it’s used to safeguard your encrypted data.": "Store your Security Key somewhere safe, like a password manager or a safe, as it’s used to safeguard your encrypted data.",
     "Download": "Download",
-    "Copy": "Copy",
     "Unable to query secret storage status": "Unable to query secret storage status",
     "Retry": "Retry",
     "If you cancel now, you may lose encrypted messages & data if you lose access to your logins.": "If you cancel now, you may lose encrypted messages & data if you lose access to your logins.",