Ignore folder in project manager "find files in current project"
**Is your feature request related to a problem? Please describe.**
I find myself using `[space] -> p -> f` (projects -> find files in current project) very often, but I'd like to be able to configure it to exclude files in the `dist/` directory.

**Describe the solution you'd like**
A configuration option for `~/.SpaceVim.d/init.toml` to set a pattern to exclude from project files search

**Describe alternatives you've considered**
`fzf` find files in current directory, but that solution breaks as soon as you open a file within a subdirectory since it's no longer searching from the project root.

