nvim: add trouble.nvim

.config/nvim/lua/blake/plugins.lua

@@ -274,6 +274,13 @@ return require('packer').startup({function()
          require('blake.other').telescope()
       end
    }
+   use {
+      'folke/trouble.nvim',
+      requires = "kyazdani42/nvim-web-devicons",
+      config = function()
+         require('trouble').setup({ mode = "quickfix" })
+      end
+   }
    use { -- gitsigns:                  git integration
       'lewis6991/gitsigns.nvim',
       requires = { 'nvim-lua/plenary.nvim' },