added viu img previewer support

lua/telekasten.lua

@@ -153,6 +153,7 @@ local function defaultConfig(home)
         -- how to preview media files
         -- "telescope-media-files" if you have telescope-media-files.nvim installed
         -- "catimg-previewer" if you have catimg installed
+        -- "viu-previewer" if you have viu installed
         media_previewer = "telescope-media-files",
     }
     M.Cfg = cfg
@@ -979,6 +980,12 @@ local media_preview = defaulter(function(opts)
             .. "/telekasten.nvim/scripts/catimg-previewer"
     end
 
+    if vim.startswith(M.Cfg.media_previewer, "viu-previewer") then
+        preview_cmd = M.base_directory
+            .. "/telekasten.nvim/scripts/"
+            .. M.Cfg.media_previewer
+    end
+
     if vim.fn.executable(preview_cmd) == 0 then
         print("Previewer not found: " .. preview_cmd)
         return conf.file_previewer(opts)