[SWE] Use seperate target for GUI dependencies.

These are useful when installing Pyxu in user environments such as
Jupyter notebooks. We refactor them out to not have to pull all dev
dependencies to use them.

pyproject.toml

@@ -43,12 +43,15 @@ dependencies = [
 
 # Optional dependencies =======================================================
 [project.optional-dependencies]
-dev = [
-    "graphviz >= 0.20, < 1",
-    "hatch >= 1.7, < 2",
+interact = [
     "ipython >= 8.14, < 9",
     "jupyterlab >= 4.0, < 5",
     "matplotlib >= 3.7, < 4",
+]
+dev = [
+    "pyxu[interact]",
+    "graphviz >= 0.20, < 1",
+    "hatch >= 1.7, < 2",
     "nbsphinx  >= 0.9.0, < 1",
     "pre-commit >= 3.3, < 4",
     "pydata_sphinx_theme == 0.13.3",
@@ -64,7 +67,7 @@ dev = [
 ]
 fft = [ "finufft >= 2.1, < 3", ]
 xray = [ "drjit == 0.4.3", ]
-complete-cpu = [ "pyxu[fft,xray]", ]
+complete-cpu = [ "pyxu[interact,fft,xray]", ]
 gpu11-base = [ "cupy-cuda11x", ]
 gpu12-base = [ "cupy-cuda12x", ]
 complete11 = [ "pyxu[complete-cpu,gpu11-base]", ]