feat(flutter): add mobile canvas lock (#15877)

* feat: add mobile canvas lock

* Update flutter/lib/models/model.dart

Remove redundant canvas-lock comment

Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>

* remove redundant logic

Signed-off-by: fufesou <linlong1266@gmail.com>

---------

Signed-off-by: fufesou <linlong1266@gmail.com>
Co-authored-by: Krik Jin <isjinhk@outlook.com>
Co-authored-by: greptile-apps[bot] <165735046+greptile-apps[bot]@users.noreply.github.com>
Co-authored-by: fufesou <linlong1266@gmail.com>

src/lang/ca.rs

@@ -767,5 +767,6 @@ pub static ref T: std::collections::HashMap<&'static str, &'static str> =
         ("whitelist_cidr_tip", "S'admet la notació CIDR, per exemple 192.168.1.0/24"),
         ("Continue", ""),
         ("Browser didn't open? Use the url below to sign in.", ""),
+        ("Lock canvas", ""),
     ].iter().cloned().collect();
 }