feat(null-ls): added fish_indent and fish diag

lua/lazyvim/plugins/lsp/init.lua

@@ -139,7 +139,8 @@ return {
       local nls = require("null-ls")
       return {
         sources = {
-          -- nls.builtins.formatting.prettierd,
+          nls.builtins.formatting.fish_indent,
+          nls.builtins.diagnostics.fish,
           nls.builtins.formatting.stylua,
           nls.builtins.formatting.shfmt,
           nls.builtins.diagnostics.flake8,