perf: slightly optimize Vec usage

src/lua/block.rs

@@ -41,7 +41,7 @@ pub async fn get_block_states(
     lua: Lua,
     (block_names, filter_fn): (Vec<String>, Option<Function>),
 ) -> Result<Vec<u16>> {
-    let mut matched = Vec::new();
+    let mut matched = Vec::with_capacity(16);
     for block_name in block_names {
         for block in
             (u32::MIN..u32::MAX).map_while(|possible_id| BlockState::try_from(possible_id).ok())

src/lua/client/mod.rs

@@ -109,11 +109,7 @@ fn id(_lua: &Lua, client: &Client) -> Result<i32> {
 }
 
 fn tab_list(_lua: &Lua, client: &Client) -> Result<Vec<Player>> {
-    let mut tab_list = Vec::new();
-    for (_, player_info) in client.tab_list() {
-        tab_list.push(Player::from(player_info));
-    }
-    Ok(tab_list)
+    Ok(client.tab_list().into_values().map(Player::from).collect())
 }
 
 fn username(_lua: &Lua, client: &Client) -> Result<String> {

src/lua/client/world/mod.rs

@@ -56,7 +56,7 @@ pub async fn find_all_entities(
     client: UserDataRef<Client>,
     (): (),
 ) -> Result<Vec<Table>> {
-    let mut matched = Vec::new();
+    let mut matched = Vec::with_capacity(256);
     for (position, custom_name, kind, uuid, direction, id, owner_uuid, pose) in
         get_entities!(client)
     {

src/lua/player.rs

@@ -13,7 +13,7 @@ pub struct Player {
 impl From<PlayerInfo> for Player {
     fn from(p: PlayerInfo) -> Self {
         Self {
-            display_name: p.display_name.map(|n| n.to_string()),
+            display_name: p.display_name.map(|text| text.to_string()),
             gamemode: p.gamemode.to_id(),
             latency: p.latency,
             name: p.profile.name,