nvim: Add fidget.nvim

Added fidget plugin which shows the current loading status of LSPs. Only
works for a few LSP (so far), including lua and python. Should
automatically pick up new implementations on update. Will display a
small loading notification in the lower right corner, useful to display
status for those situations where LSP loading takes a long time (e.g.
rust compilation requirements or a large python environment).

FIXME Does not work for each python environment startup yet, and I am
not sure why - sometimes just does not display its loading startup.

nvim/.config/nvim/lazy-lock.json

@@ -23,6 +23,7 @@
   "dial.nvim": { "branch": "master", "commit": "54b503f906bc9e5ab85288414840a1b86d40769f" },
   "dressing.nvim": { "branch": "master", "commit": "5f44f829481640be0f96759c965ae22a3bcaf7ce" },
   "easyread.nvim": { "branch": "main", "commit": "73df5f4dc8fd38bef079b890b2a34412844c00b1" },
+  "fidget.nvim": { "branch": "main", "commit": "688b4fec4517650e29c3e63cfbb6e498b3112ba1" },
   "formatter.nvim": { "branch": "master", "commit": "ed949c13e1a942db29ababa35e8c7864ced90eb6" },
   "friendly-snippets": { "branch": "main", "commit": "25ddcd96540a2ce41d714bd7fea2e7f75fea8ead" },
   "fwatch.nvim": { "branch": "main", "commit": "a691f7349dc66285cd75a1a698dd28bca45f2bf8" },

nvim/.config/nvim/lua/plugins.lua

@@ -220,7 +220,8 @@ return {
             },
             "L3MON4D3/LuaSnip",
             "rafamadriz/friendly-snippets",
-            { "lukas-reineke/lsp-format.nvim", config = true }
+            { "lukas-reineke/lsp-format.nvim", config = true },
+            { "j-hui/fidget.nvim",             config = true } -- loading animations for some LSP
         },
         config = function() require('plug._lsp') end,
         branch = "v2.x"