chore(ui): improve readability of the version in the footer

[nisnopa]

Description

This PR fixes the way the version is displayed in the footer: v. x.y.z isn't very elegant, and the spaces between the current hash and the parentheses are unnecessary.

Checklist

• Make sure to rebase your PR against the very latest dev.
• Features/Changes should be submitted against the dev.
• Give a meaningful name to your PR, as it may end up being used in the release notes.
• Your code is Ruff compliant (see ruff.toml).
• Your code is python 3.13 compliant.
• Add the proper label to categorize your PR.

[dryrunsecurity]

This pull request contains two critical findings where the user 'nisnopa' modified sensitive codepaths in 'dojo/templates/base.html' and 'dojo/templatetags/display_tags.py' without being on the allowed authors list.

🔴 Configured Sensitive Codepath Modified by Non-Allowed Author in dojo/templates/base.html (drs_4337442f)

Vulnerability	Configured Sensitive Codepath Modified by Non-Allowed Author
Description	File 'dojo/templates/base.html' matches configured sensitive codepath pattern 'dojo/templates/*.html' and was modified by 'nisnopa' (commit abeb88c) who is not in the allowed authors list.

🔴 Configured Sensitive Codepath Modified by Non-Allowed Author in dojo/templatetags/display_tags.py (drs_af7c0d91)

Vulnerability	Configured Sensitive Codepath Modified by Non-Allowed Author
Description	File 'dojo/templatetags/display_tags.py' matches configured sensitive codepath pattern 'dojo/templatetags/*.py' and was modified by 'nisnopa' (commit abeb88c) who is not in the allowed authors list.

We've notified @mtesauro.

---

Comment to provide feedback on these findings.

Report false positive: @dryrunsecurity fp [FINDING ID] [FEEDBACK]
Report low-impact: @dryrunsecurity nit [FINDING ID] [FEEDBACK]

Example: @dryrunsecurity fp drs_90eda195 This code is not user-facing

All finding details can be found in the DryRun Security Dashboard.