Add csharp support

init.lua

@@ -412,7 +412,7 @@ require('lazy').setup({
     'neovim/nvim-lspconfig',
     dependencies = {
       -- Automatically install LSPs and related tools to stdpath for Neovim
-      { 'williamboman/mason.nvim', config = true }, -- NOTE: Must be loaded before dependants
+      { 'williamboman/mason.nvim', config = true, opts = { ensure_installed = { "csharpier", "netcoredbg" }} }, -- NOTE: Must be loaded before dependants
         'williamboman/mason-lspconfig.nvim',
         'WhoIsSethDaniel/mason-tool-installer.nvim',
 
@@ -578,6 +578,26 @@ require('lazy').setup({
           -- tsserver = {},
           --
 
+          omnisharp = {
+            handlers = {
+              ["textDocument/definition"] = function(...)
+                return require("omnisharp_extended").handler(...)
+              end,
+            },
+            keys = {
+              {
+                "gd",
+                function()
+                  require("omnisharp_extended").telescope_lsp_definitions()
+                end,
+                desc = "Goto Definition",
+              },
+            },
+            enable_roslyn_analyzers = true,
+            organize_imports_on_format = true,
+            enable_import_completion = true,
+          },
+
           lua_ls = {
             -- cmd = {...},
             -- filetypes = { ...},
@@ -652,7 +672,8 @@ require('lazy').setup({
         end,
         formatters_by_ft = {
           lua = { 'stylua' },
-        json = { 'jq' },
+          json = { 'fixjson' },
+          cs = { 'csharpier' },
           -- Conform can also run multiple formatters sequentially
           -- You can use a sub-list to tell conform to run *until* a formatter
           -- is found.
@@ -771,6 +792,9 @@ require('lazy').setup({
         }
       end,
     },
+    {
+      "Issafalcon/neotest-dotnet",
+    },
 
     { -- You can easily change to a different colorscheme.
       -- Change the name of the colorscheme plugin below, and then
@@ -852,7 +876,7 @@ require('lazy').setup({
       'nvim-treesitter/nvim-treesitter',
       build = ':TSUpdate',
       opts = {
-      ensure_installed = { 'bash', 'c', 'diff', 'html', 'lua', 'luadoc', 'markdown', 'vim', 'vimdoc', 'python', 'rust', 'zig' },
+        ensure_installed = { 'bash', 'c_sharp', 'lua', 'luadoc', 'markdown', 'vim', 'python', 'rust', 'zig' },
         -- Autoinstall languages that are not installed
         auto_install = true,
         highlight = {