refactor: split ThumbRenderer class (#1462)

* refactor: split ThumbRenderer class

* refactor: consolidate embedded archive thumbnail functions

* fix: move jxl optional import to raster_image.py

* refactor: name and license consistency, misc fixes

* fix: remove file_renderer.py

* refactor: split Qt functions from thumb renderer

* refactor: cleanup vendored blender file

* refactor: rename ambiguous variables

* chore: implement review feedback

* chore: rename missed old variables

pyproject.toml

@@ -92,7 +92,7 @@ filterwarnings = [
 ignore = [
     ".venv/**",
     "src/tagstudio/core/library/json/",
-    "src/tagstudio/qt/previews/vendored/pydub/",
+    "src/tagstudio/renderers/vendored/pydub/",
 ]
 include = ["src/tagstudio", "tests"]
 # Reference for the settings here: https://github.com/microsoft/pyright/blob/main/docs/configuration.md
@@ -121,7 +121,7 @@ ignore = ["D100", "D101", "D102", "D103", "D104", "D105", "D106", "D107"]
 
 [tool.ruff.lint.per-file-ignores]
 "tests/**" = ["D", "E402"]
-"src/tagstudio/qt/previews/vendored/**" = ["B", "E", "N", "UP", "SIM115"]
+"src/tagstudio/renderers/vendored/**" = ["B", "E", "N", "UP", "SIM115"]
 
 [tool.ruff.lint.pydocstyle]
 convention = "google"