Automation of CSS compilation, fixed .gitignore build issue

The grabbing of dependencies and compilation of SCSS can now simply be
done with a:

poetry run task compile-css

before a:

poetry build

When building from source. The issue where the .gitignore had to be
removed before building has been fixed, too.

scss/compile.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python3
+import sass
+import subprocess
+import shutil
+from pathlib import Path
+
+def runcmd(cmd):
+    proc = subprocess.Popen(cmd.split(), stdout=subprocess.PIPE)
+    return proc.communicate()
+
+local_path = Path(__file__).resolve().parent
+node_bin = local_path.parent / 'node_modules' / '.bin'
+
+for bsv in [d for d in local_path.iterdir() if 'bs' in d.name]:
+    scss = bsv / f'{bsv.name}-jf.scss'
+    css = bsv / f'{bsv.name}-jf.css'
+    min_css = bsv.parents[1] / 'jellyfin_accounts' / 'data' / 'static' / f'{bsv.name}-jf.css'
+    with open(css, 'w') as f:
+        f.write(sass.compile(filename=str(scss.resolve()),
+                             output_style='expanded',
+                             precision=6))
+    if css.exists():
+        print(f'{bsv.name}: Compiled.')
+        runcmd(f'{str((node_bin / "postcss").resolve())} {str(css.resolve())} --replace --use autoprefixer')
+        print(f'{bsv.name}: Prefixed.')
+        runcmd(f'{str((node_bin / "cleancss").resolve())} --level 1 --format breakWith=lf --output {str(min_css.resolve())} {str(css.resolve())}')
+        if min_css.exists():
+            print(f'{bsv.name}: Minified and copied to {str(min_css.resolve())}.')
+
+for v in [('bootstrap', 'bs5'), ('bootstrap4', 'bs4')]:
+    new_path = str((local_path.parent / 'jellyfin_accounts' / 'data' / 'static' / (v[1] + '.css')).resolve())
+    shutil.copy(str((local_path.parent / 'node_modules' / v[0] / 'dist' / 'css' / 'bootstrap.min.css').resolve()),
+                new_path)
+    print(f'Copied {v[1]} to {new_path}')
+