Merge branch 'develop' of github.com:matrix-org/matrix-react-sdk into t3chguy/fix/17686

 Conflicts:

	src/SlashCommands.tsx

	src/components/views/settings/tabs/room/SecurityRoomSettingsTab.tsx

	src/createRoom.ts

test/end-to-end-tests/element/install.sh

@@ -12,5 +12,5 @@ unzip -q element.zip
 rm element.zip
 mv element-web-${ELEMENT_BRANCH} element-web
 cd element-web
-yarn install
+yarn install --pure-lockfile
 yarn run build

test/end-to-end-tests/install.sh

@@ -4,4 +4,4 @@ set -e
 ./synapse/install.sh
 # local testing doesn't need a Element fetched from master,
 # so not installing that by default
-yarn install
+yarn install --pure-lockfile