[WIP] Unique url for view_all_submissions and my_submission

[Kajol-Kumari]

This PR includes:

• Corrected url path for my_submissions and view_all_submissions
• Changed the unique url to slug based
• Add unique url access for view_all_submissions

work to be done:

• Fix the unique url implemented in this PR for my_submission and view_all_submissions

[codecov-commenter]

Codecov Report

Merging #322 into master will decrease coverage by 0.16%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master     #322      +/-   ##
==========================================
- Coverage   50.63%   50.47%   -0.17%     
==========================================
  Files          66       66              
  Lines        3772     3784      +12     
  Branches      444      450       +6     
==========================================
  Hits         1910     1910              
- Misses       1767     1779      +12     
  Partials       95       95              

Impacted Files	Coverage Δ
...lengesubmissions/challengesubmissions.component.ts	35.29% <0.00%> (-1.17%)	⬇️
...bmissions/challengeviewallsubmissions.component.ts	30.84% <0.00%> (-0.89%)	⬇️
src/app/services/endpoints.service.ts	64.89% <0.00%> (ø)

Impacted Files	Coverage Δ
...lengesubmissions/challengesubmissions.component.ts	35.29% <0.00%> (-1.17%)	⬇️
...bmissions/challengeviewallsubmissions.component.ts	30.84% <0.00%> (-0.89%)	⬇️
src/app/services/endpoints.service.ts	64.89% <0.00%> (ø)

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update a348206...d94e237. Read the comment docs.