Report room and decline & block screens tweaks (#4044)

* report rom and decline and block screens tweaks

- Use the copies: "Leave room" and "Report room" everywhere, also in DMs
- Report reason in report room is now mandatory.
- Report reason in decline and block is now mandatory if the report action is set to on.
- Generic alert for failure of main API in both report room and decline and block has been added

* report room and decline and block screen previews

ElementX/Resources/Localizations/en.lproj/Localizable.strings

@@ -240,6 +240,7 @@
 "common_shared_location" = "Shared location";
 "common_signing_out" = "Signing out";
 "common_something_went_wrong" = "Something went wrong";
+"common_something_went_wrong_message" = "We encountered an issue. Please try again.";
 "common_starting_chat" = "Starting chat…";
 "common_sticker" = "Sticker";
 "common_success" = "Success";
@@ -486,7 +487,7 @@
 "screen_report_room_leave_failed_alert_message" = "Your report was submitted successfully, but we encountered an issue while trying to leave the room. Please try again.";
 "screen_report_room_leave_failed_alert_title" = "Unable to Leave Room";
 "screen_report_room_reason_footer" = "Report this room to your admin. If the messages are encrypted, your admin will not be able to read them.";
-"screen_report_room_reason_placeholder" = "Describe the reason…";
+"screen_report_room_reason_placeholder" = "Describe the reason to report…";
 "screen_report_room_title" = "Report room";
 "screen_reset_encryption_password_error" = "An unknown error happened. Please check your account password is correct and try again.";
 "screen_resolve_send_failure_changed_identity_primary_button_title" = "Withdraw verification and send";