Fix option precedence buffer over global

lua/zettelkasten/files.lua

@@ -1,5 +1,4 @@
 local ls = {}
--- TODO rename to files.lua? since it's the only module interacting solely w/ the file system
 
 local o = require 'zettelkasten.options'
 

lua/zettelkasten/options.lua

@@ -45,7 +45,7 @@ local function get_options(defaults)
     for opt, _ in pairs(def) do
 
         -- check for vim options set (globally or buffer), otherwise use default value
-        options[opt] = vim.g[def[opt].vimname] or vim.b[def[opt].vimname] or
+        options[opt] = vim.b[def[opt].vimname] or vim.g[def[opt].vimname] or
                            def[opt].default
 
         -- check correct option set for constrained value sets