fix: update fe contributing documentation and get dev commands in order

[akellbl4]

Resolves #1530

Documentation wasn't matching reality.
Updated run commands and docs.

[codecov]

Codecov Report

Base: 57.95% // Head: 57.95% // No change to project coverage 👍

Coverage data is based on head (6840bd3) compared to base (984fbde).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1538   +/-   ##
=======================================
  Coverage   57.95%   57.95%           
=======================================
  Files         131      131           
  Lines        2916     2916           
  Branches      745      745           
=======================================
  Hits         1690     1690           
  Misses       1094     1094           
  Partials      132      132           

Impacted Files	Coverage Δ
...rontend/apps/remark42/app/components/root/root.tsx	0.00% <0.00%> (ø)

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.

[github-actions]

size-limit report 📦

Path	Size
public/embed.mjs	2.03 KB (0%)
public/remark.mjs	73.02 KB (+0.01% 🔺)
public/remark.css	8.12 KB (-0.02% 🔽)
public/last-comments.mjs	35.82 KB (0%)
public/last-comments.css	3.72 KB (0%)
public/deleteme.mjs	12.05 KB (0%)
public/counter.mjs	749 B (0%)