vim: Add registers view (#25945)

Closes #18157

Release Notes:

- vim: Added `:reg[isters]` to show the current values of registers

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Co-authored-by: Conrad Irwin <conrad.irwin@gmail.com>

crates/vim/Cargo.toml

@@ -31,6 +31,7 @@ libc.workspace = true
 log.workspace = true
 multi_buffer.workspace = true
 nvim-rs = { git = "https://github.com/KillTheMule/nvim-rs", branch = "master", features = ["use_tokio"], optional = true }
+picker.workspace = true
 regex.workspace = true
 schemars.workspace = true
 search.workspace = true