feat(rust-analyzer): update rust analyzer config

lua/config/plugins/rustaceanvim.lua

@@ -1,9 +1,15 @@
+local navic = require("nvim-navic")
+
 vim.g.rustaceanvim = {
 	server = {
+		on_attach = function(client, bufnr)
+			navic.attach(client, bufnr)
+		end,
 		settings = {
 			['rust-analyzer'] = {
-				procMacro = {
-					enable = true,
+				numThreads = 6,
+				cachePriming = {
+					numThreads = false
 				},
 				assist = {
 					importEnforceGranularity = true,
@@ -16,6 +22,16 @@ vim.g.rustaceanvim = {
 					command = "clippy",
 					allFeatures = true
 				},
+				procMacro = {
+					enable = true,
+				},
+				inlayHints = {
+					parameterHints = false,
+					lifetimeElisionHints = false,
+					chainingHints = false,
+					bindingModeHints = false,
+					renderColons = false,
+				}
 			}
 		}
 	}