feat: Add search by delegation id

[brancoder]

Description of change

resolves #1152

Type of change

• Enhancement (a non-breaking change which adds functionality)

Change checklist

• My code follows the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes

[panteleymonchuk]

@brancoder could you clarify if this mentioned route in description already exists in dev branch? Or we still need to add it?

#1152
...and route to Output Page

[brancoder]

@brancoder could you clarify if this mentioned route in description already exists in dev branch? Or we still need to add it?

#1152 ...and route to Output Page

The Output Page is already there. The task was just to search for delegation output by delegation id and, if found, show user the Output Page.