docs: Improve summary documentation of deps (#1159)

lua/lazyvim/plugins/ui.lua

@@ -49,7 +49,8 @@ return {
     end,
   },
 
-  -- bufferline
+  -- This is what powers LazyVim's fancy-looking
+  -- tabs, which include filetype icons and close buttons.
   {
     "akinsho/bufferline.nvim",
     event = "VeryLazy",
@@ -186,7 +187,9 @@ return {
     },
   },
 
-  -- active indent guide and indent text objects
+  -- Active indent guide and indent text objects. When you're browsing
+  -- code, this highlights the current level of indentation, and animates
+  -- the highlighting.
   {
     "echasnovski/mini.indentscope",
     version = false, -- wait till new 0.7.0 release to put it back on semver
@@ -331,7 +334,9 @@ return {
     end,
   },
 
-  -- lsp symbol navigation for lualine
+  -- lsp symbol navigation for lualine. This shows where
+  -- in the code structure you are - within functions, classes,
+  -- etc - in the statusline.
   {
     "SmiteshP/nvim-navic",
     lazy = true,