Secure backup is required

[yostyle]

Type of change

• [x] Feature
• [ ] Bugfix
• [ ] Technical
• [ ] Other :

Content

Secure backup is required

Motivation and context

988

Screenshots / GIFs

aucun appareil - pas de sauvegarde	autre(s) appareil(s) - pas de sauvegarde	autre(s) appareil(s) - sauvegarde existante	aucun appareil - sauvegarde existante

Tests

• Step 1
• Step 2
• Step ...

Tested devices

• [x] Physical
• [ ] Emulator
• OS version(s):

Checklist

• [ ] Changes has been tested on an Android device or Android emulator with API 21
• [ ] UI change has been tested on both light and dark themes
• [ ] Accessibility has been taken into account. See https://github.com/tchapgouv/tchap-android-v2/blob/develop/CONTRIBUTING.md#accessibility
• [x] Pull request is based on the develop branch
• [ ] Pull request updates TCHAP_CHANGES.md
• [ ] Pull request includes a new file under ./changelog.d. See https://github.com/tchapgouv/tchap-android-v2/blob/develop/CONTRIBUTING.md#changelog
• [ ] Pull request includes screenshots or videos if containing UI changes
• [ ] Pull request includes a sign off
• [ ] You've made a self review of your PR
• [ ] If you have modified the screen flow, or added new screens to the application, you have updated the test UiAllScreensSanityTest.allScreensTest()

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#changelog)

Generated by :no_entry_sign: dangerJS against 760de95faf371994708f925517987b19d763be26

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#changelog)

Generated by :no_entry_sign: dangerJS against 288f5575f5a8b13672a380b3316b788fed758137

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#changelog)

Generated by :no_entry_sign: dangerJS against d3fe326a7f6843127ef376f1e7a6a74cff888103

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#changelog)

Generated by :no_entry_sign: dangerJS against 2e0fd6de27e7698718f2c77745ad2ceb33b943df

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/vector-im/element-android/blob/develop/CONTRIBUTING.md#changelog)
:warning:	Please add a reviewer to your PR.

Generated by :no_entry_sign: dangerJS against 0523144b5680a3db707fac1b3b0510ecad6c01e9

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/element-hq/element-android/blob/develop/CONTRIBUTING.md#changelog)
:warning:	Please add a reviewer to your PR.

Generated by :no_entry_sign: dangerJS against a7f9fa35cf378db8b7c9c6e7e5311f479c0cddbc

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/element-hq/element-android/blob/develop/CONTRIBUTING.md#changelog)
:warning:	Please add a reviewer to your PR.

Generated by :no_entry_sign: dangerJS against b65faececfd1ee089a8ab73f27a6c4c45488eb64

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/element-hq/element-android/blob/develop/CONTRIBUTING.md#changelog)
:warning:	Please add a reviewer to your PR.

Generated by :no_entry_sign: dangerJS against 6e7484c5bd022ec028d94cc920da69784410d6ac

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/element-hq/element-android/blob/develop/CONTRIBUTING.md#changelog)
:warning:	Please add a reviewer to your PR.

Generated by :no_entry_sign: dangerJS against 34f0eada701d901dc6be5e953d8af5f00b915ee3

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/element-hq/element-android/blob/develop/CONTRIBUTING.md#changelog)
:warning:	Please add a reviewer to your PR.

Generated by :no_entry_sign: dangerJS against ed393aec998882fba4594c2e9d0578aca7c73abd

[tchap-danger-bot[bot]]

	Warnings
:warning:	Please add a changelog. See instructions [here](https://github.com/element-hq/element-android/blob/develop/CONTRIBUTING.md#changelog)
:warning:	Please add a reviewer to your PR.

Generated by :no_entry_sign: dangerJS against 11422fe6fff31947e100d2cf2ef5257a8cfd3bf4