expose indexmap to notedeck

Signed-off-by: kernelkind <kernelkind@gmail.com>

crates/notedeck/Cargo.toml

@@ -50,6 +50,7 @@ md5 = { workspace = true }
 bitflags = { workspace = true }
 regex = "1"
 chrono = { workspace = true }
+indexmap = {workspace = true}
 
 [dev-dependencies]
 tempfile = { workspace = true }