docs: Minor updates for Dashboard V.2

[skierkowski]

Minor updates to the Dashboard V.2 docs to reflect feedback and additional post-launch review.

[codecov]

Codecov Report

Patch coverage: 90.00% and project coverage change: +0.10% 🎉

Comparison is base (c66aad7) 86.54% compared to head (9a19766) 86.65%.
Report is 9 commits behind head on main.

❗ Current head 9a19766 differs from pull request most recent head 2876d80. Consider uploading reports for the commit 2876d80 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #12170      +/-   ##
==========================================
+ Coverage   86.54%   86.65%   +0.10%     
==========================================
  Files         311      311              
  Lines       13122    13089      -33     
==========================================
- Hits        11357    11342      -15     
+ Misses       1765     1747      -18     

Files Changed	Coverage Δ
.../cli/commands-schema/common-options/aws-service.js	100.00% <ø> (ø)
lib/cli/commands-schema/no-service.js	100.00% <ø> (ø)
lib/cli/handle-error.js	89.13% <ø> (ø)
lib/cli/interactive-setup/deploy.js	94.28% <ø> (ø)
lib/cli/interactive-setup/utils.js	85.45% <ø> (ø)
lib/cli/render-help/general.js	72.22% <ø> (ø)
commands/logout.js	80.00% <50.00%> (+1.42%)	⬆️
bin/serverless.js	48.00% <100.00%> (ø)
lib/cli/interactive-setup/aws-credentials.js	83.16% <100.00%> (ø)
lib/cli/interactive-setup/dashboard-login.js	80.85% <100.00%> (-1.15%)	⬇️
... and 3 more

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.