Winbar Support + Notes and Discussions; Help Popup + Auto-Open (#133)

- Adds support for toggling between discussions and notes views
- Deprecates the split view shared with both discussions and notes at the same time
- Adds winbar to discussion split, with metadata about resolved and unresolved discussions
- Adds help popups with information about keybindings for all views
- Modifies highlights in discussion tree and default symbol for unresolved discussions

This is a MINOR version bump as the default behavior of the discussion tree is changed slightly. Existing configurations should still function.

lua/gitlab/actions/help.lua

@@ -0,0 +1,27 @@
+local M = {}
+
+local u = require("gitlab.utils")
+local state = require("gitlab.state")
+local Popup = require("nui.popup")
+
+M.open = function()
+  local bufnr = vim.api.nvim_get_current_buf()
+  local keymaps = vim.api.nvim_buf_get_keymap(bufnr, "n")
+  local help_content_lines = {}
+  for _, keymap in ipairs(keymaps) do
+    if keymap.desc ~= nil then
+      local new_line = string.format("%s: %s", keymap.lhs, keymap.desc)
+      table.insert(help_content_lines, new_line)
+    end
+  end
+  local longest_line = u.get_longest_string(help_content_lines)
+  local help_popup =
+    Popup(u.create_popup_state("Help", state.settings.popup.help, longest_line + 3, #help_content_lines + 3, 60))
+  help_popup:mount()
+
+  state.set_popup_keymaps(help_popup, "Help", nil)
+  local currentBuffer = vim.api.nvim_get_current_buf()
+  vim.api.nvim_buf_set_lines(currentBuffer, 0, #help_content_lines, false, help_content_lines)
+end
+
+return M