Removing Which-key, adding a bunch of small improvments

Highlight on yank
gitsigns
oil as default explorer

lua/barink/plugins/gitsigns.lua

@@ -1,4 +1,29 @@
 return {
     'lewis6991/gitsigns.nvim',
-    opt = {}
+    config = function()
+        local opts = {
+            signs = {
+                add          = { text = '+' },
+                change       = { text = "~" },
+                delete       = { text = "_" },
+                topdelete    = { text = "-" },
+                changedelete = { text = "~" }
+            },
+            signs_staged = {
+                add          = { text = '+' },
+                change       = { text = "~" },
+                delete       = { text = "_" },
+                topdelete    = { text = "-" },
+                changedelete = { text = "~" },
+                untracked    = { text = "*" },
+            },
+            signs_staged_enable = true,
+            signcolumn = true,
+            watch_gitdir = {
+                follow_files = true
+            },
+            auto_attach = true
+        }
+        require("gitsigns").setup(opts)
+    end,
 }