feat(lsp): update side panel opening behavior

- The side panel now opens with the current buffer context.
- Users can access definitions in a new vertical window more intuitively.
- Improved workflow for navigating LSP definitions.

Author: ruicsh

plugin/autocmds/lsp-attach.lua

@@ -55,7 +55,8 @@ local function keymaps(bufnr, client)
 
 	-- Open definition in a new vertical window
 	local function vsplit_and_definition()
-		vim.ui.open_side_panel(false)
+		-- We need to open the panel with the current buffer first
+		vim.ui.open_side_panel("vsplit | wincmd L")
 		vim.lsp.buf.definition()
 	end