feat(plugins): add neotest support (#169)

* feat(plugins): add neotest support

* refactor(neotest): rely on semantically sound links for highlights where it makes sense

* refactor(neotest): use same link for expand and indent groups

---------

Co-authored-by: Micah Halter <micah.halter@gtri.gatech.edu>

Author: azdanov

README.md

@@ -253,6 +253,7 @@ term.foreground
 | [mini.starter](https://github.com/echasnovski/mini.starter)                     | `ministarter`        |
 | [neo-tree.nvim](https://github.com/nvim-neo-tree/neo-tree.nvim)                 | `neo-tree`           |
 | [neogit](https://github.com/NeogitOrg/neogit)                                   | `neogit`             |
+| [neotest](https://github.com/nvim-neotest/neotest)                              | `neotest`            |
 | [noice.nvim](https://github.com/folke/noice.nvim)                               | `noice`              |
 | [nvcheatsheet.nvim](https://github.com/smartinellimarco/nvcheatsheet.nvim)      | `nvcheatsheet`       |
 | [nvim-cmp](https://github.com/hrsh7th/nvim-cmp)                                 | `nvim-cmp`           |

lua/astrotheme/groups/plugins/init.lua

@@ -18,6 +18,7 @@ return {
   ["mini.icons"] = "miniicons",
   ["neo-tree.nvim"] = "neo-tree",
   ["neogit"] = "neogit",
+  ["neotest"] = "neotest",
   ["noice.nvim"] = "noice",
   ["nvcheatsheet.nvim"] = "nvcheatsheet",
   ["nvim-cmp"] = "nvim-cmp",

lua/astrotheme/groups/plugins/neotest.lua

@@ -0,0 +1,25 @@
+---@type AstroThemeCallback
+local function callback(c)
+  return {
+    NeotestAdapterName = "Title",
+    NeotestBorder = { fg = c.ui.border },
+    NeotestDir = "Directory",
+    NeotestExpandMarker = "Conceal",
+    NeotestFailed = "ErrorMsg",
+    NeotestFile = "DiffFile",
+    NeotestFocused = { underline = true },
+    NeotestIndent = "Conceal",
+    NeotestMarked = { fg = c.ui.cyan },
+    NeotestNamespace = { fg = c.ui.text, bold = true },
+    NeotestPassed = "DiagnosticOk",
+    NeotestRunning = "DiagnosticWarn",
+    NeotestSkipped = "DiagnosticHint",
+    NeotestTarget = "DiagnosticInfo",
+    NeotestTest = { fg = c.ui.text },
+    NeotestUnknown = { fg = c.ui.text },
+    NeotestWatching = "DiagnosticInfo",
+    NeotestWinSelect = "PmenuSel",
+  }
+end
+
+return callback