core, ui: invite member of one group to another group (#7682)

* rfc: invite member of one group to another group

* update

* update

* implement

* version

* update

* do not show error if contact was removed when joining group

---------

Co-authored-by: Evgeny @ SimpleX Chat <259188159+evgeny-simplex@users.noreply.github.com>

src/Simplex/Chat/Store/SQLite/Migrations/chat_schema.sql

@@ -260,6 +260,7 @@ CREATE TABLE group_members(
   roster_served_version INTEGER,
   member_security_code TEXT,
   member_security_code_verified_at TEXT,
+  invited_via_group_member_id INTEGER REFERENCES group_members(group_member_id) ON DELETE SET NULL,
   FOREIGN KEY(user_id, local_display_name)
   REFERENCES display_names(user_id, local_display_name)
   ON DELETE CASCADE
@@ -1557,6 +1558,9 @@ CREATE INDEX idx_badge_code_redemptions_user ON badge_code_redemptions(
 CREATE UNIQUE INDEX idx_badge_purchases_code_redemption ON badge_purchases(
   badge_code_redemption_id
 );
+CREATE INDEX idx_group_members_invited_via_group_member_id ON group_members(
+  invited_via_group_member_id
+);
 CREATE TRIGGER on_group_members_insert_update_summary
 AFTER INSERT ON group_members
 FOR EACH ROW