fix(picker.git_log): add extra space between the date and the message (#885)

## Description

Add additional space between the date of the commit and the commit
message so that the message is more readable. Also added support for
spaces between the type and the scope of the commit.

## Screenshots

Before:


![image](https://github.com/user-attachments/assets/446480cd-0165-4421-9e63-29bfc7188011)


![image](https://github.com/user-attachments/assets/d75fbe6c-394e-4d97-aad9-ca3e7d3cd35c)

After:


![image](https://github.com/user-attachments/assets/8f1ac512-d723-4f5b-81de-000d794ad7a4)


![image](https://github.com/user-attachments/assets/273a0cac-c927-4ad2-9b51-737daa60c56a)

Author: hankertrix

lua/snacks/picker/format.lua

@@ -129,9 +129,10 @@ function M.git_log(item, picker)
   if item.date then
     ret[#ret + 1] = { a(item.date, 16), "SnacksPickerGitDate" }
   end
+  ret[#ret + 1] = { " " }
 
   local msg = item.msg ---@type string
-  local type, scope, breaking, body = msg:match("^(%S+)(%(.-%))(!?):%s*(.*)$")
+  local type, scope, breaking, body = msg:match("^(%S+)%s*(%(.-%))(!?):%s*(.*)$")
   if not type then
     type, breaking, body = msg:match("^(%S+)(!?):%s*(.*)$")
   end