feat(deltachat-repl): built-in QR code printer

Print QR codes with Rust code
instead of depending on external `qrencode`.

Cargo.lock

@@ -1109,6 +1109,28 @@ version = "0.8.19"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "248e3bacc7dc6baa3b21e405ee045c3047101a49145e7e9eca583ab4c2ca5345"
 
+[[package]]
+name = "crossterm"
+version = "0.28.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "829d955a0bb380ef178a640b91779e3987da38c9aea133b20614cfed8cdea9c6"
+dependencies = [
+ "bitflags 2.6.0",
+ "crossterm_winapi",
+ "parking_lot",
+ "rustix",
+ "winapi",
+]
+
+[[package]]
+name = "crossterm_winapi"
+version = "0.9.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "acdd7c62a3665c7f6830a51635d9ac9b23ed385797f70a83bb8bafe9c572ab2b"
+dependencies = [
+ "winapi",
+]
+
 [[package]]
 name = "crunchy"
 version = "0.2.2"
@@ -1403,6 +1425,7 @@ dependencies = [
  "dirs",
  "log",
  "nu-ansi-term",
+ "qr2term",
  "rusqlite",
  "rustyline",
  "tokio",
@@ -4457,6 +4480,22 @@ dependencies = [
  "unarray",
 ]
 
+[[package]]
+name = "qr2term"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6867c60b38e9747a079a19614dbb5981a53f21b9a56c265f3bfdf6011a50a957"
+dependencies = [
+ "crossterm",
+ "qrcode",
+]
+
+[[package]]
+name = "qrcode"
+version = "0.14.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d68782463e408eb1e668cf6152704bd856c78c5b6417adaee3203d8f4c1fc9ec"
+
 [[package]]
 name = "qrcodegen"
 version = "1.8.0"