fix: new design for not found page

[alok-traceable]

Description

Changes for new NOT FOUND page.

Testing

No changes on the existing test cases

Checklist:

• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• Any dependent changes have been merged and published in downstream modules

Before

After

[codecov]

Codecov Report

Merging #1022 (416c64f) into main (b7d4569) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main    #1022   +/-   ##
=======================================
  Coverage   85.06%   85.06%           
=======================================
  Files         820      820           
  Lines       16863    16863           
  Branches     2190     2190           
=======================================
  Hits        14344    14344           
  Misses       2488     2488           
  Partials       31       31           

Impacted Files	Coverage Δ
...ts/components/src/not-found/not-found.component.ts	100.00% <ø> (ø)

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[github-actions]

Unit Test Results

    4 files  ±0  262 suites  ±0   16m 7s ⏱️ - 1m 0s
945 tests ±0  945 ✔️ ±0  0 💤 ±0  0 ❌ ±0 
952 runs  ±0  952 ✔️ ±0  0 💤 ±0  0 ❌ ±0 

Results for commit c90b652. ± Comparison against base commit b7d4569.