Improve LSP configs and change keybindings to align with default nvim

0.11 ones

lsp/lua_ls.lua

@@ -1,4 +1,19 @@
 return {
     cmd = { "lua-language-server" },
-         filetypes = { "lua" }
+    filetypes = { "lua" },
+    root_markers = { ".git" },
+
+    settings = {
+        Lua = {
+            runtime = {
+                version = 'LuaJIT',
+            },
+            diagnostics = {
+                globals = { 'vim' },
+            },
+            telemetry = {
+                enable = false,
+            },
+        },
+    },
 }