Add new commands for synth ring (#16095)
Fixes #13768
It's very related to this issue, since it adds these same suggested commands in it for easier navigation in certain cases.
Summary of the issue:
More efficient navigation in the synth settings ring by adding new commands for it.
Description of user facing changes
Added scripts:
CTRL+shift+NVDA+home (laptop) and CTRL+NVDA+home (desktop) to set the current value to the first one.
CTRL+shift+NVDA+page up (laptop) and CTRL+NVDA+page up (desktop) to jump forward the current value by 4x.
CTRL+shift+NVDA+page down (laptop) and CTRL+NVDA+page down (desktop) to jump backward the current value by 4x.
CTRL+shift+NVDA+end (laptop) and CTRL+NVDA+end (desktop) to set the current value to the last one.
Description of development approach
In the synth ring, the first and last functions, as increase or decrease by 4x defs as well, (which handles self.min and self.max) were added to both the numeric ring and the global ring, in their respective classes. I consider this approach to be better, because by jumping in this way, focusing on the minimum and maximum values, it can respect the settings of other synth drivers and thus not cause problems with them.
