feat: new settings menu + settings backend (#859)

* feat: add tab widget

* refactor: move languages dict to translations.py

* refactor: move build of Settings Modal to SettingsPanel class

* feat: hide title label

* feat: global settings class

* fix: initialise settings

* fix: properly store grid files changes

* fix: placeholder text for library settings

* feat: add ui elements for remaining global settings

* feat: add page size setting

* fix: version mismatch between pydantic and typing_extensions

* fix: update test_driver.py

* fix(test_file_path_options): replace patch with change of settings

* feat: setting for dark mode

* fix: only show restart_label when necessary

* fix: change modal from "done" type to "Save/Cancel" type

* feat: add test for GlobalSettings

* docs: mark roadmap item as completed

* fix(test_filepath_setting): Mock the app field of QtDriver

* Update src/tagstudio/main.py

Co-authored-by: Travis Abendshien <46939827+CyanVoxel@users.noreply.github.com>

* fix: address review suggestions

* fix: page size setting

* feat: change dark mode option to theme dropdown

* fix: test was expecting wrong behaviour

* fix: test was testing for correct behaviour, fix behaviour instead

* fix: test fr fr

* fix: tests fr fr fr

* fix: tests fr fr fr fr

* fix: update test

* fix: tests fr fr fr fr fr

* fix: select all was selecting hidden entries

* fix: create more thumbitems as necessary

pyproject.toml

@@ -27,6 +27,8 @@ dependencies = [
     "typing_extensions>=3.10.0.0,<4.11.0",
     "ujson>=5.8.0,<5.9.0",
     "vtf2img==0.1.0",
+    "toml==0.10.2",
+    "pydantic==2.9.2",
 ]
 
 [project.optional-dependencies]