(2.0.0) woohoo, first major version bump!

bunch of stuff this update, including a full documentation site (still a WIP)
there is now a cache created whenever an instance of `FloweryAPI` is instantiated, so you don't have to query the api and iterate through the api response to retrieve a single voice anymore!
function names have also been changed with this update, hence the major version bump. `get_tts()`, `get_voices()`, and `get_voice()` have been renamed to `fetch_tts()`, `fetch_voices()`, and `fetch_voice()` respectively. `get_voices()` still exists, but with different functionality (that method retrieves voices from the internal cache instead of querying the flowery api)

!BREAKING

pyproject.toml

@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pyflowery"
-version = "1.0.6"
+version = "2.0.0"
 description = "A Python API wrapper for the Flowery API"
 authors = ["cswimr <seaswimmerthefsh@gmail.com>"]
 readme = "README.md"
@@ -15,10 +15,24 @@ classifiers = [
 python = "^3.11"
 aiohttp = "^3.9.5"
 
+[tool.poetry.group.dev]
+optional = true
+
 [tool.poetry.group.dev.dependencies]
 pylint = "^3.2.7"
 ruff = "^0.6.5"
 
+[tool.poetry.group.docs]
+optional = true
+
+[tool.poetry.group.docs.dependencies]
+mkdocs = "1.6.1"
+mkdocstrings = {extras = ["python"], version = "0.26.1"}
+mkdocs-git-authors-plugin = "0.9.0"
+mkdocs-git-revision-date-localized-plugin = "1.2.9"
+mkdocs-material = {extras = ["imaging"], version = "9.5.35"}
+mkdocs-redirects = "1.2.1"
+
 [build-system]
 requires = ["poetry-core"]
 build-backend = "poetry.core.masonry.api"