nvim: HACK Fix quarto running magma session

With the new lazy loaded plugin structure, Magma would not start correctly.
This commit simply removes the lazy designation for Magma, Quarto and the
Jupyter attachments.

It also uses the python environment detection utility to set the correct
python executable on entering a quarto file (if there exists a virtual
environment for the project).

nvim/.config/nvim/after/ftplugin/quarto.lua

@@ -1,5 +1,7 @@
 -- Start quarto session
 local startsession = function(file, args)
+	local path, _ = require("util").get_python_venv()
+	vim.g["python3_host_prog"] = path
 	file = file or "/tmp/jupyter-magma-session.json"
 	if args then
 		file = args[0]

nvim/.config/nvim/lua/plugins/data_analysis.lua

@@ -18,6 +18,7 @@ return {
 				},
 			})
 		end,
+		lazy = false,
 		ft = "quarto",
 	},
 
@@ -33,6 +34,7 @@ return {
 				desc = "Inspect object in kernel",
 			},
 		},
+		lazy = false,
 	},
 
 	-- REPL work
@@ -51,5 +53,6 @@ return {
 			"MagmaRestart",
 		},
 		ft = { "quarto", "python" },
+		lazy = false,
 	},
 }