fix: cleanup of layout actions

* fix: finish docs and remove mistakes from merge

* fix: change order of `popup` changes based on type of change
  - removes "flash" issue where popups don't update in sync

doc/telescope.txt

@@ -154,7 +154,7 @@ telescope.setup({opts})                                    *telescope.setup()*
         2. table <br>
             A table with possible keys `layout_strategy`, `layout_config` and `previewer`
 
-        Default: TODO
+        Default: { "horizontal", "vertical" }
 
 
                                               *telescope.defaults.winblend*
@@ -1926,15 +1926,6 @@ actions.toggle_all({prompt_bufnr})                      *actions.toggle_all()*
         {prompt_bufnr} (number)  The prompt bufnr
 
 
-actions.toggle_preview({prompt_bufnr})              *actions.toggle_preview()*
-    Toggle preview window.
-    - Note: preview window can be toggled even if preview is set to false.
-
-
-    Parameters: ~
-        {prompt_bufnr} (number)  The prompt bufnr
-
-
 actions.git_create_branch({prompt_bufnr})        *actions.git_create_branch()*
     Create and checkout a new git branch if it doesn't already exist