update nvim-metals's dependencies

- plenary.nvim is removed due to this:
  https://github.com/scalameta/nvim-metals/pull/753
- telescope is optional

lua/lazyvim/plugins/extras/lang/scala.lua

@@ -11,26 +11,16 @@ return {
   },
   {
     "scalameta/nvim-metals",
-    dependencies = {
-      "nvim-lua/plenary.nvim",
-    },
     keys = {
       {
-        "<leader>me",
-        function()
-          require("telescope").extensions.metals.commands()
-        end,
-        desc = "Metals commands",
-      },
-      {
-        "<leader>mc",
+        "<localleader>c",
         function()
           require("metals").compile_cascade()
         end,
         desc = "Metals compile cascade",
       },
       {
-        "<leader>mh",
+        "<localleader>h",
         function()
           require("metals").hover_worksheet()
         end,
@@ -45,8 +35,8 @@ return {
 
       metals_config.settings = {
         verboseCompilation = true,
-        showImplicitArguments = true,
-        showImplicitConversionsAndClasses = true,
+        showImplicitArguments = false,
+        showImplicitConversionsAndClasses = false,
         showInferredType = true,
         superMethodLensesEnabled = true,
         excludedPackages = {
@@ -102,4 +92,18 @@ return {
       }
     end,
   },
+  {
+    "nvim-telescope/telescope.nvim",
+    optional = true,
+    keys = {
+      {
+        "<localleader>e",
+        function()
+          require("telescope").extensions.metals.commands()
+        end,
+        ft = { "scala", "sbt", "java" },
+        desc = "Metals commands",
+      },
+    },
+  },
 }