feat: new ueberzug_scale and ueberzug_offset option

cspell.json

@@ -1 +1 @@
-{"version":"0.2","words":["linemode"],"language":"en","flagWords":[]}
+{"version":"0.2","words":["linemode","Hyprland","ueberzug","yazi"],"language":"en","flagWords":[]}

usage/configuration/yazi.md

@@ -66,6 +66,15 @@ If you haven't created and used your own configuration file yet, please see [Con
 - max_height: Maximum preview height for images. Do a `yazi --clear-cache` to take effect after changing this.
 - cache_dir: The system cache directory is used by default, and the cached files will go away on a reboot automatically. If you want to make it more persistent, you can specify the cache directory manually as an absolute path.
 
+### Ueberzug-specific
+
+- ueberzug_scale (Float): Ueberzug image scaling ratio, `scale>1` for enlargement, `scale<1` for reduction. For example, `0.5` indicates a reduction to half.
+- ueberzug_offset (`[x, y, width, height]`): Ueberzug image offset, in cell units. For example, `[0.5, 0.5, -0.5, -0.5]` indicates that the image is offset by half a cell in both directions, and the width and height are reduced by half a cell.
+
+This is useful for solving [the bug of Ueberzug image size calculation](https://github.com/jstkdng/ueberzugpp/issues/122).
+
+If your monitor has a `2.0` scale factor, and is running on Wayland under Hyprland, you may need to set `ueberzug_scale: 0.5`, and adjust the value of `ueberzug_offset` according to your case, to offset this issue.
+
 ## opener
 
 Configure available openers, for example: