feat: add ui.confirm.remove and ui.confirm.trash, deprecate trash.require_confirm (#1887)

* Implement turning off y/n prompt for file deletion

* Refactor different prompt configs to single ui table

* Remove unused fields

* add ui.confirm doc, format/tidy

* trash.require_confirm -> ui.confirm.trash

* Fix nil value trash field

Co-authored-by: Alexander Courtis <alex@courtis.org>

doc/nvim-tree-lua.txt

@@ -374,7 +374,6 @@ Subsequent calls to setup will replace the previous configuration.
       },
       trash = {
         cmd = "gio trash",
-        require_confirm = true,
       },
       live_filter = {
         prefix = "[FILTER]: ",
@@ -390,6 +389,12 @@ Subsequent calls to setup will replace the previous configuration.
       notify = {
         threshold = vim.log.levels.INFO,
       },
+      ui = {
+        confirm = {
+          remove = true,
+          trash = true,
+        },
+      },
       log = {
         enable = false,
         truncate = false,
@@ -993,10 +998,6 @@ Configuration options for trashing.
     The default is shipped with glib2 which is a common linux package.
       Type: `string`, Default: `"gio trash"`
 
-    *nvim-tree.trash.require_confirm*
-    Show a prompt before trashing takes place.
-      Type: `boolean`, Default: `true`
-
 *nvim-tree.actions*
 Configuration for various actions.
 
@@ -1146,6 +1147,20 @@ Configuration for notification.
     `INFO:`    information only e.g. file copy path confirmation.
     `DEBUG:`   not used.
 
+*nvim-tree.ui*
+General UI configuration.
+
+    *nvim-tree.ui.confirm*
+    Confirmation prompts.
+
+        *nvim-tree.ui.confirm.remove*
+        Prompt before removing.
+          Type: `boolean`, Default: `true`
+
+        *nvim-tree.ui.confirm.trash*  (previously `trash.require_confirm`)
+        Prompt before trashing.
+          Type: `boolean`, Default: `true`
+
 *nvim-tree.log*
 Configuration for diagnostic logging.