feat: Add plugin b0o/incline.nvim

Incline is a plugin for creating lightweight floating statuslines.

lua/plugins/incline.lua

@@ -0,0 +1,63 @@
+return {
+  {
+  -- Incline is a plugin for creating lightweight floating statuslines.
+  -- It works great with Neovim's global statusline (:set laststatus=3)
+    'b0o/incline.nvim',
+    config = function()
+      local devicons = require 'nvim-web-devicons'
+      require('incline').setup {
+        render = function(props)
+          local filename = vim.fn.fnamemodify(vim.api.nvim_buf_get_name(props.buf), ':t')
+          if filename == '' then
+            filename = '[No Name]'
+          end
+          local ft_icon, ft_color = devicons.get_icon_color(filename)
+
+          local function get_git_diff()
+            local icons = { removed = '', changed = '', added = '' }
+            local signs = vim.b[props.buf].gitsigns_status_dict
+            local labels = {}
+            if signs == nil then
+              return labels
+            end
+            for name, icon in pairs(icons) do
+              if tonumber(signs[name]) and signs[name] > 0 then
+                table.insert(labels, { icon .. signs[name] .. ' ', group = 'Diff' .. name })
+              end
+            end
+            if #labels > 0 then
+              table.insert(labels, { '┊ ' })
+            end
+            return labels
+          end
+
+          local function get_diagnostic_label()
+            local icons = { error = '', warn = '', info = '', hint = '' }
+            local label = {}
+
+            for severity, icon in pairs(icons) do
+              local n = #vim.diagnostic.get(props.buf, { severity = vim.diagnostic.severity[string.upper(severity)] })
+              if n > 0 then
+                table.insert(label, { icon .. n .. ' ', group = 'DiagnosticSign' .. severity })
+              end
+            end
+            if #label > 0 then
+              table.insert(label, { '┊ ' })
+            end
+            return label
+          end
+
+          return {
+            { get_diagnostic_label() },
+            { get_git_diff() },
+            { (ft_icon or '') .. ' ', guifg = ft_color, guibg = 'none' },
+            { filename .. ' ', gui = vim.bo[props.buf].modified and 'bold,italic' or 'bold' },
+            { '┊  ' .. vim.api.nvim_win_get_number(props.win), group = 'DevIconWindows' },
+          }
+        end,
+      }
+    end,
+    -- Optional: Lazy load Incline
+    event = 'VeryLazy',
+  },
+}