fix: update git impl matches new shell.execute behavior

Author: TwIStOy

lua/gx/git.lua

@@ -1,16 +1,17 @@
 M = {}
 
 local function parse_git_output(result)
-  if not result or #result < 1 then
+  if not result or #result < 0 then
     return
   end
 
-  local domain, repository = result[1]:gsub("%.git%s*$", ""):match("@(.*%..*):(.*)$")
+  result = vim.trim(result)
+  local domain, repository = result:gsub("%.git%s*$", ""):match("@(.*%..*):(.*)$")
   if domain and repository then
     return "https://" .. domain .. "/" .. repository
   end
 
-  local url = result[1]:gsub("%.git%s*$", ""):match("^https?://.+")
+  local url = result:gsub("%.git%s*$", ""):match("^https?://.+")
   if url then
     return url
   end

lua/gx/shell.lua

@@ -2,6 +2,7 @@ local shell = {}
 
 function shell.execute(command, args, options)
   local cmd = { command, unpack(args) }
+  options = options or {}
   local opts = vim.tbl_extend("force", {}, options)
 
   local obj = vim.system(cmd, opts):wait()