Bundle curated community plugins (2.1.8-4)

Vendored from upstream, pinned by commit (see debian/extra/README.source):
- gitstatus, gitopen, fontconfig, open_ext, select_colorscheme,
  smoothcaret, nerdicons (font mapping patched to DATADIR, Ships the
  Symbols Nerd Font Mono TTF, SIL OFL 1.1)
- lite-xl-lsp (complete LSP client; idle until a language server is
  configured) plus the lite-xl-widgets library it requires
- 104 language syntax plugins (none duplicate the nine bundled in core)

settings GUI left out upstream is broken: it requires a
libraries.widget.fonts widget that does not exist in
lite-xl-widgets at any revision.

Co-developed-with: ZCode (Z.ai)

debian/extra/libraries/widget/scrollbar.lua

@@ -0,0 +1,33 @@
+--
+-- Extends core.scrollbar to allow propagating force status to child elements.
+--
+
+---@type core.scrollbar
+local CoreScrollBar = require "core.scrollbar"
+
+---@class widget.scrollbar : core.scrollbar
+---@overload fun(parent?:widget, options?:table):widget.scrollbar
+---@field super widget.scrollbar
+---@field widget_parent widget
+local ScrollBar = CoreScrollBar:extend()
+
+function ScrollBar:new(parent, options)
+  self.widget_parent = parent
+  ScrollBar.super.new(self, options)
+end
+
+function ScrollBar:set_forced_status(status)
+  ScrollBar.super.set_forced_status(self, status)
+  if self.widget_parent and self.widget_parent.childs then
+    for _, child in pairs(self.widget_parent.childs) do
+      if self.direction == "v" then
+        child.v_scrollbar:set_forced_status(status)
+      else
+        child.h_scrollbar:set_forced_status(status)
+      end
+    end
+  end
+end
+
+
+return ScrollBar