[MDS-6781] - Improve MineSpace User Guidance

[matbusby-fw]

Objective

To improve user access to training resources, this PR enhances the MineSpace application by directing users to guidance documents when needed. This includes updating the top-right help icon and adding a prominent link in the side navigation.

MDS-6781

Key Changes

• Common Components: Updated HelpGuide.tsx in @mds/common to support an optional showText prop, allowing the "Help" label to be displayed next to the question mark icon.
• MineSpace Header: Relabeled the question mark icon in the top right to "? Help" to improve discoverability.
• Side Navigation: Added a new "How to use MineSpace" item to the sidebar, positioned just above "User Access".
• Guidance Resources: Integrated the MineSpace_User_Guide_2026.pdf as a central resource, which opens in a new tab when clicked from the side navigation.
• Tests: Updated snapshots for affected components to reflect navigation and layout changes.

Acceptance Criteria (AC)

• Add a new page/link to the side nav in MineSpace.
• [x] Direct the user to the guidance in the application.
• Maintain a central place for version control (PDF asset).
• Add a new section called “How to use MineSpace” to the side nav (placed above User Access).
• Link opens in a new tab.
• Update Question Mark icon in top right: Relabel the button to “? Help”.

Testing Plan

• Header Help Icon: Navigate to any page in MineSpace and verify the help icon in the top right is now labeled with "Help".
• Sidebar Link: Verify the sidebar contains "How to use MineSpace" above the "User Access" item.
• New Tab Behavior: Click "How to use MineSpace" and ensure it opens the PDF guide in a new browser tab.
• Drawer Functionality: Click the header "? Help" button and ensure the help drawer still opens correctly.

[sonarqubecloud]

Quality Gate passed for 'bcgov-sonarcloud_mds_common'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
85.7% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[sonarqubecloud]

Quality Gate passed for 'bcgov-sonarcloud_mds_minespace-web'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
33.3% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[sonarqubecloud]

Quality Gate passed for 'bcgov-sonarcloud_mds_core-web'

Issues
1 New issue
0 Accepted issues

Measures
0 Security Hotspots
85.3% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[alazar-aot]

Looks good to me!