Rename PostCSS files to .pcss (#9013)

* Rename PostCSS files to `.pcss`

* Make Stylelint happy

* Delint

* Rename new files too

* delint

* Fix bad comment placement

res/css/components/views/beacon/_BeaconStatus.pcss

@@ -0,0 +1,73 @@
+/*
+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.
+*/
+
+.mx_BeaconStatus {
+    display: flex;
+    flex-direction: row;
+    align-items: center;
+    justify-content: flex-start;
+
+    box-sizing: border-box;
+    padding: $spacing-8;
+
+    color: var(--color);
+    font-size: $font-12px;
+}
+
+.mx_BeaconStatus_Loading,
+.mx_BeaconStatus_Stopped {
+    --color: $tertiary-content;
+}
+
+.mx_BeaconStatus_Active,
+.mx_BeaconStatus_Error {
+    --color: $primary-content;
+}
+
+.mx_BeaconStatus_icon {
+    height: 32px;
+    width: 32px;
+
+    flex: 0 0 32px;
+    margin-right: $spacing-8;
+}
+
+.mx_BeaconStatus_description {
+    flex: 1 1 0;
+    display: flex;
+    flex-direction: column;
+    line-height: $font-14px;
+
+    padding-right: $spacing-8;
+
+    white-space: nowrap;
+    overflow: hidden;
+
+    .mx_BeaconStatus_description_status {
+        text-overflow: ellipsis;
+        overflow: hidden;
+    }
+}
+
+.mx_BeaconStatus_expiryTime {
+    color: $secondary-content;
+}
+
+.mx_BeaconStatus_label {
+    margin-bottom: 2px;
+    overflow: hidden;
+    text-overflow: ellipsis;
+}