* Support JIT invoicing on donations to rewards pool
Now you can just-in-time fund your account to donate to SN's reward pool.
You can also donate without an account via the @anon account, also using
JIT invoices.
* Ensure donate amount is numeric
* Explicit error checking for hash being required for invoice validation
* let donation exceptions bubble for jit funding
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Co-authored-by: keyan <keyan.kousha+huumn@gmail.com>
Danger case was already handled by the common `Form` component,
but success wasn't happening. I like having feedback on actions like this one.
Now, the danger toast is also specific to the donate action, and not just the underlying
JS error that occurred (which is logged, instead).
SatsAllDay
keyan