Escape paths before matching with lua patterns

[willothy]

As seen in #67, paths containing % and other symbols can cause issues with lua patterns - we should escape or validate paths before matching against them.

[tris203]

Should we just go back to using vim.fn.stdpath("config") to get the path?

The only other directory we would need to consider is after

[willothy]

Should we just go back to using vim.fn.stdpath("config") to get the path?

The only other directory we would need to consider is after

hmm that may be a good idea, but lets look into the issue more before we decide - not sure if that will be needed if we escape everything properly.