fix bugs pertaining to server actions + navigation (#55853)
This fixes some scenarios where executing a server action after navigation can cause the action to behave incorrectly (double submitting, not resolving). There are two separate issues:
- `canonicalUrl` and `pendingNavigatePath` were not constructed using the same function (`createHrefFromUrl`) so in certain situations they'd be comparing different values
- a fulfilled inFlightServerAction should not be invoked again
Closes NEXT-1655
Closes NEXT-1654
Fixes #55845
Fixes #55814
Fixes #55805
