add rustaceanvim

lua/plugins/lspconfig.lua

@@ -261,10 +261,6 @@ return {
       on_attach = on_attach,
     }
 
-    lspconfig['rust_analyzer'].setup {
-      capabilities = capabilities,
-      on_attach = on_attach,
-    }
 
     lspconfig['lua_ls'].setup {
       capabilities = capabilities,

lua/plugins/rustaceanvim.lua

@@ -0,0 +1,4 @@
+return {
+  'mrcjkb/rustaceanvim',
+  ft = { 'rust' },
+}