Make codebase comply to knip --strict (#33893)

* Make codebase comply to `knip --strict`

Deletes a few bits of dead code

* Trim i18n strings

* Fix missing export

* Remove test of dead code

apps/web/res/css/_components.pcss

@@ -165,7 +165,6 @@
 @import "./views/dialogs/_SpotlightDialog.pcss";
 @import "./views/dialogs/_TermsDialog.pcss";
 @import "./views/dialogs/_UnpinAllDialog.pcss";
-@import "./views/dialogs/_UntrustedDeviceDialog.pcss";
 @import "./views/dialogs/_UploadConfirmDialog.pcss";
 @import "./views/dialogs/_UserSettingsDialog.pcss";
 @import "./views/dialogs/_VerifyEMailDialog.pcss";
@@ -279,7 +278,6 @@
 @import "./views/rooms/_ReplyPreview.pcss";
 @import "./views/rooms/_ReplyTile.pcss";
 @import "./views/rooms/_RoomBreadcrumbs.pcss";
-@import "./views/rooms/_RoomCallBanner.pcss";
 @import "./views/rooms/_RoomHeader.pcss";
 @import "./views/rooms/_RoomInfoLine.pcss";
 @import "./views/rooms/_RoomKnocksBar.pcss";

apps/web/res/css/views/dialogs/_UntrustedDeviceDialog.pcss

@@ -1,24 +0,0 @@
-/*
-Copyright 2024 New Vector Ltd.
-Copyright 2021 The Matrix.org Foundation C.I.C.
-
-SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
-Please see LICENSE files in the repository root for full details.
-*/
-
-.mx_UntrustedDeviceDialog {
-    .mx_Dialog_title {
-        display: flex;
-        align-items: center;
-
-        .mx_E2EIcon {
-            margin-left: 0;
-        }
-    }
-
-    .mx_Dialog_buttons {
-        display: flex;
-        justify-content: flex-end;
-        gap: 8px;
-    }
-}

apps/web/res/css/views/rooms/_RoomCallBanner.pcss

@@ -1,42 +0,0 @@
-/*
-Copyright 2024 New Vector Ltd.
-Copyright 2022 The Matrix.org Foundation C.I.C.
-
-SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only OR LicenseRef-Element-Commercial
-Please see LICENSE files in the repository root for full details.
-*/
-
-.mx_RoomCallBanner {
-    width: 100%;
-    display: flex;
-    flex-direction: row;
-    align-items: center;
-
-    box-sizing: border-box;
-    padding: $spacing-12 $spacing-16;
-
-    color: $primary-content;
-    background-color: $system;
-    cursor: pointer;
-}
-
-.mx_RoomCallBanner_text {
-    display: flex;
-    flex: 1;
-    align-items: center;
-}
-
-.mx_RoomCallBanner_label {
-    color: $primary-content;
-    font-weight: var(--cpd-font-weight-semibold);
-    padding-right: $spacing-8;
-
-    svg {
-        display: inline-block;
-        vertical-align: middle;
-        color: $secondary-content;
-        width: 16px;
-        height: 16px;
-        margin-right: 8px;
-    }
-}