Parachain runtime metrics followup (#4602)

* initial changes

Signed-off-by: Andrei Sandu <[email protected]>

* fmt

Signed-off-by: Andrei Sandu <[email protected]>

* remove file

Signed-off-by: Andrei Sandu <[email protected]>

* Remove pallet

Signed-off-by: Andrei Sandu <[email protected]>

* fix copyright year

Signed-off-by: Andrei Sandu <[email protected]>

* Remove metric registration op

Signed-off-by: Andrei Sandu <[email protected]>

* Register runtime metrics in client

Signed-off-by: Andrei Sandu <[email protected]>

* fmt

Signed-off-by: Andrei Sandu <[email protected]>

* fix build without `runtime-metrics`

Signed-off-by: Andrei Sandu <[email protected]>

* reduce visibility

Signed-off-by: Andrei Sandu <[email protected]>

* remove metric prefix logic, use hardcoded

Signed-off-by: Andrei Sandu <[email protected]>

* fix

Signed-off-by: Andrei Sandu <[email protected]>

* review feedback

Signed-off-by: Andrei Sandu <[email protected]>

* Split CounterVec api so it doesn't need mutability

Signed-off-by: Andrei Sandu <[email protected]>

* Const beautify

Signed-off-by: Andrei Sandu <[email protected]>

* fix

Signed-off-by: Andrei Sandu <[email protected]>

* Fix

Signed-off-by: Andrei Sandu <[email protected]>

* fix docs

Signed-off-by: Andrei Sandu <[email protected]>

* Merge web ui feedback.

Co-authored-by: Bastian Köcher <[email protected]>

Co-authored-by: Bastian Köcher <[email protected]>