feat: add language server configuration

lua/plugins/nvim-lspconfig.lua

@@ -0,0 +1,80 @@
+
+--
+-- Start config for builtin Neovim language server protocol client
+--
+-- Source: https://github.com/RRethy/vim-illuminate
+-- ..............................................
+--
+-- Author: Sven Vogel
+-- Created: 08.11.2024
+-- Edited: 08.11.2024
+--
+-- ==============================================
+
+ui = require 'config.ui'
+
+return {
+    {
+        'neovim/nvim-lspconfig',
+        dependencies = {
+            "williamboman/mason.nvim",
+            {
+                "williamboman/mason-lspconfig.nvim",
+                config = function()
+                end
+            },
+        },
+        opts = {
+            inlay_hints = {
+                enabled = true,
+            },
+            diagnostics = {
+                virtual_text = true,
+                signs = true,
+                update_in_insert = false,
+                underline = true,
+                severity_sort = false,
+                float = {
+                    border = ui.border,
+                    source = 'always',
+                },
+            }
+        },
+        config = function(opts)
+            require("mason").setup()
+
+            local handlers = {
+                -- The first entry (without a key) will be the default handler
+                -- and will be called for each installed server that doesn't have
+                -- a dedicated handler.
+                function(server_name) -- default handler (optional)
+                    require("lspconfig")[server_name].setup({
+                        on_attach = function(client, bufnr)
+                        end
+                    })
+                end,
+            }
+
+            require("mason-lspconfig").setup({ handlers = handlers })
+
+            -- Setup diagnostic user interface
+            --
+            -- Source: https://vonheikemen.github.io/devlog/tools/setup-nvim-lspconfig-plus-nvim-cmp
+            -- ..............................................
+
+            vim.lsp.handlers['textDocument/hover'] = vim.lsp.with(
+                vim.lsp.handlers.hover,
+                {
+                    border = ui.border
+                })
+
+            vim.lsp.handlers['textDocument/signatureHelp'] = vim.lsp.with(
+                vim.lsp.handlers.signature_help,
+                {
+                    border = ui.border
+                })
+            
+            vim.diagnostic.config(vim.deepcopy(opts.diagnostics))
+        end
+    }
+}