docs: enforce "treesitter" spelling #27110

It's the "tree-sitter" project, but "treesitter" in our code and docs.

runtime/lua/vim/filetype.lua

@@ -1909,7 +1909,7 @@ local pattern = {
   ['.*baseq[2-3]/.*%.cfg'] = 'quake',
   ['.*quake[1-3]/.*%.cfg'] = 'quake',
   ['.*id1/.*%.cfg'] = 'quake',
-  ['.*/queries/.*%.scm'] = 'query', -- tree-sitter queries (Neovim only)
+  ['.*/queries/.*%.scm'] = 'query', -- treesitter queries (Neovim only)
   ['.*,v'] = 'rcs',
   ['%.reminders.*'] = starsetf('remind'),
   ['[rR]akefile.*'] = starsetf('ruby'),

runtime/lua/vim/highlight.lua

@@ -26,7 +26,7 @@ local M = {}
 
 --- Table with default priorities used for highlighting:
 ---     - `syntax`: `50`, used for standard syntax highlighting
----     - `treesitter`: `100`, used for tree-sitter-based highlighting
+---     - `treesitter`: `100`, used for treesitter-based highlighting
 ---     - `semantic_tokens`: `125`, used for LSP semantic token highlighting
 ---     - `diagnostics`: `150`, used for code analysis such as diagnostics
 ---     - `user`: `200`, used for user-triggered highlights such as LSP document

runtime/lua/vim/treesitter/dev.lua

@@ -14,7 +14,7 @@ local M = {}
 local TSTreeView = {}
 
 ---@class TSP.Node
----@field node TSNode Tree-sitter node
+---@field node TSNode Treesitter node
 ---@field field string? Node field
 ---@field depth integer Depth of this node in the tree
 ---@field text string? Text displayed in the inspector for this node. Not computed until the