Cease supporting Docker deployments altogether

Other changes:
* Do not use Funkwhale's CI, GitPod, etc
* Support Taskfile.yml (might make future CI builds easier)

Signed-off-by: Shin'ya Minazuki <shinyoukai@laidback.moe>

docs/Taskfile.yml

@@ -0,0 +1,55 @@
+# https://taskfile.dev
+
+version: '3'
+
+env:
+  POETRY_VIRTUALENVS_IN_PROJECT: true
+  
+vars:
+  DSTDIR: _build
+  LOCALES: en_GB en_US fr
+  SPHINX_OPTS: -j 4
+  SRCDIR: .
+tasks:
+  default:
+    cmds:
+      - echo "To see the available tasks, run task -l"
+    silent: true
+  install:
+    desc: Install required dependencies
+    cmds:
+      - poetry install --no-root
+      - poetry run pip install --no-deps --editable ../api
+  clean:
+    desc: Remove generated artifacts
+    cmds:
+      - git clean -xdf .
+  dev:
+    desc: Start a development web server
+    cmds:
+      - poetry run sphinx-autobuild . /tmp/_build/ --port 8001
+  locale-gen:
+    desc: Generate translations
+    cmds:
+      - poetry run sphinx-build -b gettext {{.SRCDIR}} locales/gettext {{.SPHINX_OPTS}}
+  locale-update:
+    desc: Update translations
+    cmds:
+      - for: { var: LOCALES  }
+        cmd: poetry run sphinx-intl update -p locales/gettext {{.ITEM}}
+  locale-prune-untranslated:
+    desc: Prune untranslated locales
+    cmds:
+      - poetry run _scripts/locale-prune-untranslated.py
+  build:
+    desc: Build documentation
+    cmds:
+      - poetru run sphinx-build {{.SRCDIR}} {{.DSTDIR}} {{.SPHINX_OPTS}}
+  build-translated:
+    desc: Build (translated) documentation
+    cmds:
+      - for: { var: LOCALES }
+        cmd: poetry run sphinx-build {{.SRCDIR}} {{.DSTDIR}}/{{.ITEM}} {{.SPHINX_OPTS}} -D language={{.IT
+      - for: { var: LOCALES }
+        cmd: poetry run sphinx-build {{.SRCDIR}} {{.DSTDIR}}/{{.ITEM}} {{.SPHINX_OPTS}} -D language={{.ITEM}}
+