remove spinner, change copy, add button placeholder

res/css/_components.scss

@@ -94,6 +94,7 @@
 @import "./views/elements/_AccessibleButton.scss";
 @import "./views/elements/_AddressSelector.scss";
 @import "./views/elements/_AddressTile.scss";
+@import "./views/elements/_ButtonPlaceholder.scss";
 @import "./views/elements/_DirectorySearchBox.scss";
 @import "./views/elements/_Dropdown.scss";
 @import "./views/elements/_EditableItemList.scss";

res/css/structures/auth/_CompleteSecurity.scss

@@ -44,6 +44,7 @@ limitations under the License.
 .mx_CompleteSecurity_actionRow {
     display: flex;
     justify-content: flex-end;
+    margin-top: $font-28px;
 
     .mx_AccessibleButton {
         margin-inline-start: 18px;

res/css/views/elements/_ButtonPlaceholder.scss

@@ -0,0 +1,24 @@
+/*
+Copyright 2017 Vector Creations 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.
+*/
+
+.mx_ButtonPlaceholder {
+    font-size: $font-14px;
+    font-weight: 600;
+    padding: 7px 18px;
+    display: inline-block;
+    text-align: center;
+    color: $authpage-secondary-color;
+}

src/components/structures/auth/SetupEncryptionBody.js

@@ -108,14 +108,13 @@ export default class SetupEncryptionBody extends React.Component {
                 member={MatrixClientPeg.get().getUser(this.state.verificationRequest.otherUserId)}
             />;
         } else if (phase === PHASE_INTRO) {
-            const InlineSpinner = sdk.getComponent('elements.InlineSpinner');
+            const ButtonPlaceholder = sdk.getComponent("elements.ButtonPlaceholder");
             return (
                 <div>
                     <p>{_t(
-                        "Open an existing session & use it to verify this one, " +
+                        "Use an existing session to verify this one, " +
                         "granting it access to encrypted messages.",
                     )}</p>
-                    <p className="mx_CompleteSecurity_waiting"><InlineSpinner />{_t("Waiting…")}</p>
                     <p>{_t(
                         "If you can’t access one, <button>use your recovery key or passphrase.</button>",
                     {}, {
@@ -133,6 +132,7 @@ export default class SetupEncryptionBody extends React.Component {
                         >
                             {_t("Skip")}
                         </AccessibleButton>
+                        <ButtonPlaceholder>{_t("Use your other device to continue…")}</ButtonPlaceholder>
                     </div>
                 </div>
             );

src/components/views/elements/ButtonPlaceholder.js

@@ -0,0 +1,19 @@
+/*
+Copyright 2020 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.
+*/
+
+export default function ButtonPlaceholder(props) {
+    return <div class="mx_ButtonPlaceholder">{props.children}</div>;
+}

src/i18n/strings/en_EN.json

@@ -2112,9 +2112,9 @@
     "You can now close this window or <a>log in</a> to your new account.": "You can now close this window or <a>log in</a> to your new account.",
     "Registration Successful": "Registration Successful",
     "Create your account": "Create your account",
-    "Open an existing session & use it to verify this one, granting it access to encrypted messages.": "Open an existing session & use it to verify this one, granting it access to encrypted messages.",
-    "Waiting…": "Waiting…",
+    "Use an existing session to verify this one, granting it access to encrypted messages.": "Use an existing session to verify this one, granting it access to encrypted messages.",
     "If you can’t access one, <button>use your recovery key or passphrase.</button>": "If you can’t access one, <button>use your recovery key or passphrase.</button>",
+    "Use your other device to continue…": "Use your other device to continue…",
     "Your new session is now verified. It has access to your encrypted messages, and other users will see it as trusted.": "Your new session is now verified. It has access to your encrypted messages, and other users will see it as trusted.",
     "Your new session is now verified. Other users will see it as trusted.": "Your new session is now verified. Other users will see it as trusted.",
     "Without completing security on this session, it won’t have access to encrypted messages.": "Without completing security on this session, it won’t have access to encrypted messages.",