multiplatform: local file encryption (#3043)

* multiplatform: file encryption

* setting

* fixed sharing

* check

* fixes, change lock icon

* update JNI bindings (crashes on desktop)

* fix JNI

* fix errors and warnings

* fix saving

---------

Co-authored-by: Evgeny Poberezkin <2769109+epoberezkin@users.noreply.github.com>

apps/multiplatform/common/src/commonMain/resources/MR/base/strings.xml

@@ -855,6 +855,7 @@
   <string name="privacy_and_security">Privacy &amp; security</string>
   <string name="your_privacy">Your privacy</string>
   <string name="protect_app_screen">Protect app screen</string>
+  <string name="encrypt_local_files">Encrypt local files</string>
   <string name="auto_accept_images">Auto-accept images</string>
   <string name="send_link_previews">Send link previews</string>
   <string name="privacy_show_last_messages">Show last messages</string>

apps/multiplatform/common/src/commonMain/resources/MR/images/ic_lock_open.svg

@@ -1 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 96 960 960" width="24"><path d="M222 971q-23.719 0-40.609-16.891Q164.5 937.219 164.5 913.5v-431q0-23.719 16.891-40.609Q198.281 425 222 425h387v-95.385q0-53.782-37.373-91.198Q534.254 201 479.863 201q-46.363 0-81.363 28T354 300.5q-3 13-11.75 21.25T321.983 330q-12.311 0-20.397-8.5-8.086-8.5-6.086-20 10-68 61.902-113t122.629-45q77.383 0 131.926 54.551Q666.5 252.603 666.5 330v95H738q23.719 0 40.609 16.891Q795.5 458.781 795.5 482.5v431q0 23.719-16.891 40.609Q761.719 971 738 971H222Zm0-57.5h516v-431H222v431Zm258.084-140q31.179 0 53.297-21.566 22.119-21.566 22.119-51.85 0-29.347-22.203-53.465-22.203-24.119-53.381-24.119-31.179 0-53.297 24.035-22.119 24.034-22.119 53.881t22.203 51.465q22.203 21.619 53.381 21.619ZM222 482.5v431-431Z"/></svg>

apps/multiplatform/common/src/commonMain/resources/MR/images/ic_lock_open_right.svg

@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" height="24" viewBox="0 -960 960 960" width="24"><path d="M222-142.5h516v-431H222v431Zm258.084-140q31.179 0 53.297-21.566 22.119-21.566 22.119-51.85 0-29.347-22.203-53.465-22.203-24.119-53.381-24.119-31.179 0-53.297 24.035-22.119 24.034-22.119 53.881t22.203 51.465q22.203 21.619 53.381 21.619ZM222-142.5v-431 431Zm0 57.5q-23.719 0-40.609-16.891Q164.5-118.781 164.5-142.5v-431q0-23.719 16.891-40.609Q198.281-631 222-631h329.5v-95.018q0-77.832 54.349-132.157Q660.198-912.5 738-912.5q70 0 121.25 44T922-759q2 11.5-6.638 22.25T895.75-726q-12.66 0-20.705-6-8.045-6-9.545-18.5-9-44.5-44.55-74.5T738-855q-54.333 0-91.667 37.333Q609-780.333 609-726.231V-631h129q23.719 0 40.609 16.891Q795.5-597.219 795.5-573.5v431q0 23.719-16.891 40.609Q761.719-85 738-85H222Z"/></svg>