Fix: Work with strings instead of urls

Somehow urls have a lifetime that I wasn't aware of. It seems to be
much shorter than expected, and aren't equivalent to strings. Sticking
to strings and instantiating urls when needed seems to be the best for
now.

Fixes #8.

init.lua

@@ -818,9 +818,9 @@ local get_config = ya.sync(function(state)
 end)
 
 -- Function to get the current working directory
----@type fun(): Url Returns the current working directory as a url
-local get_current_directory_url = ya.sync(
-    function(_) return cx.active.current.cwd end
+---@type fun(): string Returns the current working directory as a string
+local get_current_directory = ya.sync(
+    function(_) return tostring(cx.active.current.cwd) end
 )
 
 -- Function to get the path of the hovered item
@@ -1064,12 +1064,12 @@ local function get_item_group()
 end
 
 -- Function to get all the items in the given directory
----@param directory_url Url The url to the directory
+---@param directory_path string The path to the directory
 ---@param get_hidden_items boolean Whether to get hidden items
 ---@param directories_only boolean|nil Whether to only get directories
 ---@return Url[] directory_items The list of urls to the directory items
 local function get_directory_items(
-    directory_url,
+    directory_path,
     get_hidden_items,
     directories_only
 )
@@ -1079,7 +1079,7 @@ local function get_directory_items(
     local directory_items = {}
 
     -- Read the contents of the directory
-    local directory_contents, _ = fs.read_dir(directory_url, {})
+    local directory_contents, _ = fs.read_dir(Url(directory_path), {})
 
     -- If there are no directory contents,
     -- then return the empty list of directory items
@@ -1111,13 +1111,13 @@ local function get_directory_items(
 end
 
 -- Function to skip child directories with only one directory
----@param initial_directory_url Url The url of the initial directory
+---@param initial_directory_path string The path of the initial directory
 ---@return nil
-local function skip_single_child_directories(initial_directory_url)
+local function skip_single_child_directories(initial_directory_path)
     --
 
     -- Initialise the directory variable to the initial directory given
-    local directory = initial_directory_url
+    local directory = initial_directory_path
 
     -- Get the tab preferences
     local tab_preferences = get_tab_preferences()
@@ -1151,7 +1151,7 @@ local function skip_single_child_directories(initial_directory_url)
         if not directory_item_cha.is_dir then break end
 
         -- Otherwise, set the directory to the inner directory
-        directory = directory_item_url
+        directory = tostring(directory_item_url)
     end
 
     -- Emit the change directory command to change to the directory variable
@@ -2266,13 +2266,13 @@ local function get_archive_paths(args)
 end
 
 -- Function to either reveal or change directory based on the item
----@param item_url Url The url of the item to reveal or change directory to
+---@param item_path string The path of the item to reveal or change directory to
 ---@return "reveal" | "cd" yazi_command The Yazi command to execute
-local function reveal_or_cd(item_url)
+local function reveal_or_cd(item_path)
     --
 
     -- Otherwise, get the cha object of the item
-    local item_cha = fs.cha(item_url, false)
+    local item_cha = fs.cha(Url(item_path), false)
 
     -- Get if the item is a directory
     local is_directory = item_cha and item_cha.is_dir
@@ -2372,8 +2372,8 @@ local function handle_extract(args, config)
 
         -- Otherwise, reveal or change the directory to the extracted items
         ya.manager_emit(
-            reveal_or_cd(extracted_items_url),
-            { extracted_items_url }
+            reveal_or_cd(extracted_items_path),
+            { extracted_items_path }
         )
 
         -- If the user wants to skip single subdirectories on enter,
@@ -2385,7 +2385,7 @@ local function handle_extract(args, config)
             --
 
             -- Call the function to skip child directories
-            skip_single_child_directories(extracted_items_url)
+            skip_single_child_directories(extracted_items_path)
         end
     end
 end
@@ -2425,7 +2425,7 @@ local function handle_enter(args, config)
 
     -- Otherwise, call the function to skip child directories
     -- with only a single directory inside
-    skip_single_child_directories(get_current_directory_url())
+    skip_single_child_directories(get_current_directory())
 end
 
 -- Function to handle the leave command
@@ -2447,8 +2447,7 @@ local function handle_leave(args, config)
     end
 
     -- Otherwise, initialise the directory to the current directory
-    ---@type Url
-    local directory = get_current_directory_url()
+    local directory = get_current_directory()
 
     -- Get the tab preferences
     local tab_preferences = get_tab_preferences()
@@ -2467,14 +2466,14 @@ local function handle_leave(args, config)
 
         -- Get the parent directory of the current directory
         ---@type Url|nil
-        local parent_directory = directory:parent()
+        local parent_directory = Url(directory):parent()
 
         -- If the parent directory is nil,
         -- break the loop
         if not parent_directory then break end
 
         -- Otherwise, set the new directory to the parent directory
-        directory = parent_directory
+        directory = tostring(parent_directory)
     end
 
     -- Emit the change directory command to change to the directory variable
@@ -2638,7 +2637,7 @@ local function handle_create(args, config)
 
     -- Get the current working directory as a url
     ---@type Url
-    local current_working_directory = get_current_directory_url()
+    local current_working_directory = Url(get_current_directory())
 
     -- Get whether the url ends with a path delimiter
     local ends_with_path_delimiter = user_input:find("[/\\]$")