support for multi-part file extensions like *.test.js

[mrjones2014]

Description

Updates code used to get icons from nvim-web-devicons to pass the filename as well as extension.

Type of change

• Bug fix (non-breaking change which fixes an issue)

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide instructions so we can reproduce. Please also list relevant details about your configuration

Set up nvim-web-devicons with configuration:

require('nvim-web-devicons').setup({
  override = {
    ['js'] = {
      icon = '',
      color = '#efd81d',
      cterm_color = '220',
      name = 'Js',
    },
    ['test.js'] = {
      icon = 'ﭧ',
      color = '#ffca28',
      cterm_color = '220',
      name = 'TestJavascript',
    },
  },
})

Then create a *.js and a *.test.js file, and open :Telescope find_file, and make sure the icons appear as configured.

Configuration:

• Neovim version (nvim --version):
• Operating system and version:

Checklist:

• My code follows the style guidelines of this project (stylua)
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation (lua annotations)

[Conni2461]

LGTM thanks :)

@DasGandlaf if you want to improve on this, with what you said here #2235 (comment), feel free to open a new PR. Thanks :)

[numToStr]

FYI, this completely breaks the icons, at least for me. For example, app.component.html and app.component.ts no longer show html and typescript file icon to them respectively, which was not the case before this PR.

[Conni2461]

uff, does #2256 help?

[numToStr]

@Conni2461 Thanks a ton! It does fix the issue :)