Playground Updates

[emuell]

• add global volume slider
• Control + S now commits changes, if the browser allows so
• add ability to load custom local sample files

[github-actions]

Benchmark for 143a39e

Click to view benchmark

Test	Base	PR	%
Cycle/Generate	48.8±4.18µs	50.7±9.39µs	+3.89%
Cycle/Parse	367.7±16.12µs	367.3±5.20µs	-0.11%
Rust Phrase/Clone	423.3±5.94ns	424.1±11.69ns	+0.19%
Rust Phrase/Create	73.1±0.82µs	74.3±2.96µs	+1.64%
Rust Phrase/Run	626.5±12.07µs	625.3±6.35µs	-0.19%
Rust Phrase/Seek	133.5±244.90µs	136.2±249.81µs	+2.02%
Scripted Phrase/Clone	662.2±6.48ns	654.8±66.38ns	-1.12%
Scripted Phrase/Create	947.1±10.76µs	955.1±11.25µs	+0.84%
Scripted Phrase/Run	1660.8±42.67µs	1648.0±17.61µs	-0.77%
Scripted Phrase/Seek	220.8±445.28µs	222.2±447.02µs	+0.63%

[github-actions]

Benchmark for 59d125d

Click to view benchmark

Test	Base	PR	%
Cycle/Generate	48.2±0.51µs	48.2±0.53µs	0.00%
Cycle/Parse	356.8±4.75µs	370.0±5.95µs	+3.70%
Rust Phrase/Clone	424.7±8.70ns	421.8±5.71ns	-0.68%
Rust Phrase/Create	71.5±1.43µs	73.4±1.70µs	+2.66%
Rust Phrase/Run	626.7±3.75µs	621.8±5.48µs	-0.78%
Rust Phrase/Seek	132.6±244.04µs	132.7±244.00µs	+0.08%
Scripted Phrase/Clone	647.6±9.96ns	645.9±9.63ns	-0.26%
Scripted Phrase/Create	958.0±27.99µs	960.1±33.57µs	+0.22%
Scripted Phrase/Run	1635.5±6.50µs	1648.7±12.35µs	+0.81%
Scripted Phrase/Seek	220.3±443.22µs	222.3±448.22µs	+0.91%