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/options.lua

@@ -58,6 +58,11 @@ end
 vim.g.loaded_netrw = 1
 vim.g.loaded_netrwPlugin = 1
 
+vim.g.loaded_node_provider = 0
+vim.g.loaded_perl_provider = 0
+vim.g.loaded_python3_provider = 0
+vim.g.loaded_ruby_provider = 0
+
 vim.opt.path:append({ "**" })
 vim.opt.shortmess:append({ W = true, I = true, c = true }) -- disable greeting
 
@@ -65,3 +70,22 @@ vim.opt.shortmess:append({ W = true, I = true, c = true }) -- disable greeting
 vim.g.markdown_recommended_style = 0
 
 vim.cmd([[set fillchars+=eob:\ ]])
+
+vim.filetype.add({
+	extension = {
+		astro = "astro",
+		ejs = "ejs",
+		hbs = "hbs",
+		njk = "nunjucks",
+		postcss = "postcss",
+		razor = "razor",
+		slim = "slim",
+		sugarss = "sugarss",
+		edge = "edge",
+		jade = "jade",
+		leaf = "leaf",
+		erb = "erb",
+		gohtml = "gohtml",
+		gohtmltmpl = "gohtmltmpl",
+	},
+})