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/plugins/lsp/helpdoc.lua

@@ -0,0 +1,32 @@
+---@type core.doc
+local Doc = require "core.doc"
+
+---A readonly core.doc.
+---@class lsp.helpdoc : core.doc
+local HelpDoc = Doc:extend()
+
+---Set the help text.
+---@param text string
+function HelpDoc:set_text(text)
+  self.lines = {}
+  local i = 1
+  for line in text:gmatch("([^\n]*)\n?") do
+    if line:byte(-1) == 13 then
+      line = line:sub(1, -2)
+      self.crlf = true
+    end
+    table.insert(self.lines, line .. "\n")
+    self.highlighter.lines[i] = false
+    i = i + 1
+  end
+  self:reset_syntax()
+end
+
+function HelpDoc:raw_insert(...) end
+function HelpDoc:raw_remove(...) end
+function HelpDoc:load(...) end
+function HelpDoc:reload() end
+function HelpDoc:save(...) end
+
+
+return HelpDoc