added rust analyzer lsp configuration for neovim

nvim/lua/settings/lazy/plugins/mason-lspconfig.lua

@@ -15,7 +15,8 @@ return {
       "yamlls",
       "marksman",
       "eslint",
-      "dockerls"
+      "dockerls",
+      "rust_analyzer"
     },
   },
 }

nvim/lua/settings/lazy/plugins/nvim-lspconfig.lua

@@ -213,5 +213,9 @@ return {
     lspconfig.dockerls.setup({
       capabilities = capabilities
     })
+
+    lspconfig.rust_analyzer.setup({
+      capabilities = capabilities
+    })
   end,
 }