Move history into their own module (#11308)

# Description

Since there are plans to add more history commands, it seems sensible to
put them into their own module and category

https://github.com/nushell/nushell/pull/10440#issuecomment-1731408785

# User-Facing Changes

The history commands are in the category "History" rather than "Misc"

crates/nu-cli/src/commands/history/history_.rs

@@ -34,7 +34,7 @@ impl Command for History {
                 "Show long listing of entries for sqlite history",
                 Some('l'),
             )
-            .category(Category::Misc)
+            .category(Category::History)
     }
 
     fn run(

crates/nu-cli/src/commands/history/history_session.rs

@@ -18,7 +18,7 @@ impl Command for HistorySession {
 
     fn signature(&self) -> nu_protocol::Signature {
         Signature::build("history session")
-            .category(Category::Misc)
+            .category(Category::History)
             .input_output_types(vec![(Type::Nothing, Type::Int)])
     }
 

crates/nu-cli/src/commands/history/mod.rs

@@ -0,0 +1,5 @@
+mod history_;
+mod history_session;
+
+pub use history_::History;
+pub use history_session::HistorySession;

crates/nu-cli/src/commands/mod.rs

@@ -1,15 +1,13 @@
 mod commandline;
 mod default_context;
 mod history;
-mod history_session;
 mod keybindings;
 mod keybindings_default;
 mod keybindings_list;
 mod keybindings_listen;
 
 pub use commandline::Commandline;
-pub use history::History;
-pub use history_session::HistorySession;
+pub use history::{History, HistorySession};
 pub use keybindings::Keybindings;
 pub use keybindings_default::KeybindingsDefault;
 pub use keybindings_list::KeybindingsList;

crates/nu-protocol/src/signature.rs

@@ -58,6 +58,7 @@ pub enum Category {
     Formats,
     Generators,
     Hash,
+    History,
     Math,
     Misc,
     Network,
@@ -91,6 +92,7 @@ impl std::fmt::Display for Category {
             Category::Formats => "formats",
             Category::Generators => "generators",
             Category::Hash => "hash",
+            Category::History => "history",
             Category::Math => "math",
             Category::Misc => "misc",
             Category::Network => "network",