I2S: AAC support for web radio

[Staars]

Description:

This allows to build a binary with support for AAC web radio streams with flag: USE_I2S_AAC (or USE_I2S_ALL if binary size does not matter)
Increases binary size by 75596 bytes in my test build.

Add optional decoder type to command i2swr in the form of:
i2swr<int:type> <string: url>
types:
0 - AAC
1 - MP3 (makes it backwards compatible as i2swr url == i2swr1 url)

Small refactoring and renaming in the web page.

Checklist:

• The pull request is done against the latest development branch
• Only relevant files were touched
• Only one feature/fix was added per PR and the code change compiles without warnings
• The code change is tested and works with Tasmota core ESP8266 V.2.7.8
• The code change is tested and works with Tasmota core ESP32 V.3.1.0.241206
• I accept the CLA.

NOTE: The code change must pass CI tests. Your PR cannot be merged unless tests pass

[s-hadinger]

As long as it's not included by default, I'm fine with this.
Congrats!

[Staars]

Yes, it is not enabled by default.
Current build environments with fine grained control for the audio build flags (single flags) will not pick this up.

The shortcut USE_I2S_ALL will include it as intended.

[probonopd]

Tested on esp32-s2 with PSRAM:

i2swr0 https://liveradio.swr.de/sw890cl/swr1bw/play.aac

Works great 👍 Thanks @Staars