Incorrect I2S management issues causing the appplication to crash

I2SStart called with I2S_NUM = 0, no matter what I2S interface is selected

While using the I2S interface in the ESP32 Audio Library, i've spotted that I2SStart seems to be called with I2S_NUM = 0 regardless of the I2S interface selected by the user. This issue causes the device to crash when using I2S_NUM_1 in the constructor of the Audio library and then doing some release, instantiate operations. Additionally, there is a missing call to i2s_channel_disable before channel deletion, which leads to improper deletion of the channel and generates a series of warnings during execution.

Issue 1: Wrong channel number used through I2SStop and I2SStart calls.

09:27:23.742 -> assert failed: xQueueSemaphoreTake queue.c:1653 (( pxQueue ))
09:27:23.742 -> 
09:27:23.742 -> 
09:27:23.742 -> Backtrace: 0x4037797e:0x3fcb5670 0x4037d661:0x3fcb5690 0x403834d5:0x3fcb56b0 0x4037de26:0x3fcb57e0 0x420608ce:0x3fcb5820 0x4038041e:0x3fcb5840

https://github.com/schreibfaul1/ESP32-audioI2S/blob/015e06ba02dfb1cc89da80ee55ea222293b12d8f/src/Audio.cpp#L231

Issue 2: Missing `i2s_channel_disable` before calling `i2s_del_channel`, which produces error(s) later.

09:46:42.583 -> E (265653) i2s_common: i2s_new_channel(812): no available channel found
09:46:42.583 -> E (265654) i2s_std: i2s_channel_init_std_mode(199): input parameter 'handle' is NULL
09:46:42.583 -> E (265657) i2s_common: i2s_channel_enable(999): input parameter 'handle' is NULL
09:46:42.628 -> E (265664) i2s_common: i2s_channel_disable(1026): input parameter 'handle' is NULL
09:46:42.628 -> E (265671) i2s_std: i2s_channel_reconfig_std_gpio(338): input parameter 'handle' is NULL
09:46:42.628 -> E (265679) i2s_common: i2s_channel_enable(999): input parameter 'handle' is NULL
09:46:43.145 -> E (268730) i2s_common: i2s_channel_disable(1026): input parameter 'handle' is NULL
09:46:43.145 -> E (268731) i2s_std: i2s_channel_reconfig_std_clock(258): input parameter 'handle' is NULL
09:46:43.145 -> E (268735) i2s_std: i2s_channel_reconfig_std_slot(308): input parameter 'handle' is NULL
09:46:43.145 -> E (268743) i2s_common: i2s_channel_enable(999): input parameter 'handle' is NULL
09:46:43.192 -> E (268751) i2s_common: i2s_channel_write(1109): input parameter 'handle' is NULL

https://github.com/schreibfaul1/ESP32-audioI2S/blob/015e06ba02dfb1cc89da80ee55ea222293b12d8f/src/Audio.cpp#L293

This problem has a significant impact, potentially causing audio malfunctions or even application crashes.
I have submitted a PR to address these issues.

schreibfaul1 / ESP32-audioI2S