nvim: Improve LSP stuff

tree/.config/nvim/lua/fns.lua

@@ -1,12 +1,10 @@
--- change rust-analyzer target
+-- change rust-analyzer target and restart
 set_rust_target = function(target)
+    vim.g["rust-analyzer-target"] = target
+    vim.cmd("RustAnalyzer restart")
     print("rust-analyzer.cargo.target = " .. target)
-    require("rust-tools").setup({
-      server = { settings = { ["rust-analyzer"] = { cargo = { target = target } } } },
-    })
 end
 
--- a custom telescope picker for changing rust-analyzer target
 pick_rust_target = function(opts)
   opts = opts or {}
   require("telescope.pickers").new(opts, {
@@ -24,3 +22,5 @@ pick_rust_target = function(opts)
     end,
   }):find()
 end
+
+