v1.4.0

[Lyr3x]

• Add manual and calibration configuration
• Add timing_budget configuration
• Add sensor_mode configuration
• Improved counting algorithm
• Improved calibration accuracy
• Add configuration validation
• Publish sensors as diagnostic to HA
• Fix flaky presence sensor
• Fixed a lot of minor bugs and improved performance

[Lyr3x]

As this PR contains a lot of changes including some breaking changes, I decided to bump the version to 1.4.0 instead of 1.3.4