Nvim: optimize config, change colorscheme to kanagawa

.config/nvim/lua/plugins/specs.lua

@@ -0,0 +1,22 @@
+return {
+  'edluffy/specs.nvim',
+  config = function()
+    require('specs').setup{
+      show_jumps  = true,
+      min_jump = 30,
+      popup = {
+          delay_ms = 0, -- delay before popup displays
+          inc_ms = 10, -- time increments used for fade/resize effects 
+          blend = 10, -- starting blend, between 0-100 (fully transparent), see :h winblend
+          width = 10,
+          winhl = "PMenu",
+          fader = require('specs').linear_fader,
+          resizer = require('specs').shrink_resizer
+      },
+      ignore_filetypes = {},
+      ignore_buftypes = {
+          nofile = true,
+      },
+    }
+  end
+}