lsp: don't manually setup rust-analyzer. rust-tools already does

lua/plugins/lsp.lua

@@ -41,10 +41,6 @@ return {
                 capabilities = capabilities,
             })
 
-            lspconfig.rust_analyzer.setup({
-                capabilities = capabilities,
-            })
-
             lspconfig.lua_ls.setup({
                 capabilities = capabilities,
                 settings = {
@@ -109,7 +105,11 @@ return {
                 event = "BufEnter Cargo.toml",
             },
         },
-        opts = {
+        lazy = false,
+        config = function()
+            local capabilities = require("cmp_nvim_lsp").default_capabilities();
+
+            require("rust-tools").setup({
                 server = {
                     on_attach = function(_, bufnr)
                         local rt = require("rust-tools");
@@ -118,8 +118,9 @@ return {
                         -- Code action groups
                         vim.keymap.set("n", "<Leader>a", rt.code_action_group.code_action_group, { buffer = bufnr })
                     end,
+                    capabilities = capabilities,
                 },
-        },
-        event = { "LspAttach *.rs" },
+            });
+        end,
     }
 }