feat(lua): expand LuaLSP, Treesitter and pack helper configurations

Why: improve language support and fix a client API typo

- New Features
  - Added extensive filetype list for Tailwind LSP (astro, blade, ejs, etc.) and enabled the language server
  - Extended Treesitter parser list with regex, latex, tsx, svelte, typst, vue
  - Introduced PackChanged autocmd that notifies on install/update builds
- Enhancements
  - Disabled unused provider loaders (node, perl, python3, ruby)
  - Registered additional filetype handlers for various template extensions
  - Updated markdown style setting and filledchars option
- Bug Fixes
  - Corrected client:supports_method call in autocmd.lua (removed stray colon)

lua/lsp.lua

@@ -36,6 +36,46 @@ vim.schedule(function()
 
 	vim.lsp.enable("html")
 	vim.lsp.enable("cssls")
+	vim.lsp.config("tailwindcss", {
+		filetypes = {
+			"astro",
+			"blade",
+			"edge",
+			"ejs",
+			"erb",
+			"gohtml",
+			"gohtmltmpl",
+			"handlebars",
+			"hbs",
+			"html",
+			"jade",
+			"leaf",
+			"liquid",
+			"markdown",
+			"mdx",
+			"mustache",
+			"nunjucks",
+			"php",
+			"razor",
+			"slim",
+			"twig",
+			"css",
+			"less",
+			"postcss",
+			"sass",
+			"scss",
+			"stylus",
+			"sugarss",
+			"javascript",
+			"javascriptreact",
+			"rescript",
+			"typescript",
+			"typescriptreact",
+			"vue",
+			"svelte",
+			"templ",
+		},
+	})
 	vim.lsp.enable("tailwindcss")
 
 	-- rust