nvim: Update theme to gruvbox

The default theme is hard to tell colors apart and the default color
schemes aren't great in general

Signed-off-by: Nicholas Mello <nick@nmello.dev>

nvim/lazy-lock.json

@@ -3,6 +3,7 @@
   "friendly-snippets": { "branch": "main", "commit": "efff286dd74c22f731cdec26a70b46e5b203c619" },
   "fzf.vim": { "branch": "master", "commit": "3725f364ccd25b85a91970720ba9bc2931861910" },
   "gitsigns.nvim": { "branch": "main", "commit": "6e3c66548035e50db7bd8e360a29aec6620c3641" },
+  "gruvbox.nvim": { "branch": "main", "commit": "5e0a460d8e0f7f669c158dedd5f9ae2bcac31437" },
   "lazy.nvim": { "branch": "main", "commit": "6c3bda4aca61a13a9c63f1c1d1b16b9d3be90d7a" },
   "lazydev.nvim": { "branch": "main", "commit": "2367a6c0a01eb9edb0464731cc0fb61ed9ab9d2c" },
   "mason.nvim": { "branch": "main", "commit": "7dc4facca9702f95353d5a1f87daf23d78e31c2a" },

nvim/lua/plugins/theme.lua

@@ -0,0 +1,10 @@
+return {
+  "ellisonleao/gruvbox.nvim",
+  config = function()
+    vim.g.gruvbox_contrast_dark = "hard"
+    vim.g.gruvbox_italic = 1
+    vim.g.gruvbox_bold = 1
+
+    vim.cmd("colorscheme gruvbox")
+  end,
+}