fix: filetype set too early (#230)

Filetype is set before width or height, which breaks changing the
window position inside autocommands from outside of the plugin. Move it
after setting the width/height.

Co-authored-by: ii14 <ii14@users.noreply.github.com>

lua/trouble/view.lua

@@ -150,7 +150,6 @@ function View:setup(opts)
   self:set_option("foldenable", false, true)
   self:set_option("winhighlight", "Normal:TroubleNormal,EndOfBuffer:TroubleNormal,SignColumn:TroubleNormal", true)
   self:set_option("fcs", "eob: ", true)
-  self:set_option("filetype", "Trouble")
 
   for action, keys in pairs(config.options.action_keys) do
     if type(keys) == "string" then
@@ -171,6 +170,8 @@ function View:setup(opts)
     vim.api.nvim_win_set_width(self.win, config.options.width)
   end
 
+  self:set_option("filetype", "Trouble")
+
   vim.api.nvim_exec(
     [[
       augroup TroubleHighlights