Update election candidate bios and template to use proper YAML format

- Update 2025-GB candidate files to include full YAML header structure
- Fix YAML info section to use map format instead of list format
- Update 2025 nomination template to match new YAML structure
- Ensure consistency across all election file formats

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: cblecker

elections/steering/2025-GB/candidate-cblecker.md

@@ -1,6 +1,9 @@
 -------------------------------------------------------------
 name: Christoph Blecker
 ID: cblecker
+info:
+  employer: Red Hat
+  slack: cblecker
 -------------------------------------------------------------
 
 # Christoph Blecker

elections/steering/2025-GB/candidate-cpanato.md

@@ -1,6 +1,9 @@
 -------------------------------------------------------------
 name: Carlos Tadeu Panato Jr
 ID: cpanato
+info:
+  employer: Chainguard
+  slack: cpanato
 -------------------------------------------------------------
 
 # Carlos Tadeu Panato Jr

elections/steering/2025-GB/candidate-dims.md

@@ -1,6 +1,9 @@
 -------------------------------------------------------------
 name: Davanum Srinivas
 ID: dims
+info:
+  employer: Amazon Web Services
+  slack: dims
 -------------------------------------------------------------
 
 # Davanum Srinivas

elections/steering/2025-GB/candidate-nikhita.md

@@ -1,6 +1,9 @@
 -------------------------------------------------------------
 name: Nikhita Raghunath
 ID: nikhita
+info:
+  employer: VMware
+  slack: nikhita
 -------------------------------------------------------------
 
 # Nikhita Raghunath

elections/steering/2025/nomination-template.md

@@ -2,8 +2,8 @@
 name: 
 ID: GitHubID
 info:
-  - employer: Your Employer or "Independent"
-  - slack: slack handle
+  employer: Your Employer or "Independent"
+  slack: slack handle
 -------------------------------------------------------------
 
 <!-- Please make a copy of this template as "candidate-githubid.md" and save it to