feat(ui): add config to turn off hints popup (#75)

lua/avante/config.lua

@@ -82,6 +82,10 @@ M.defaults = {
     ---@type string | fun(): any
     list_opener = "copen",
   },
+  --- @class AvanteHintsConfig
+  hints = {
+    enbaled = true,
+  },
 }
 
 ---@type avante.Config
@@ -92,6 +96,10 @@ M.options = {}
 ---@field highlights AvanteConflictHighlights
 M.diff = {}
 
+---@class AvanteHintsConfig
+---@field enabled boolean
+M.hints = {}
+
 ---@param opts? avante.Config
 function M.setup(opts)
   M.options = vim.tbl_deep_extend("force", M.defaults, opts or {})