Fix labels for GitHub issue templates (#43348)

Release Notes:

- N/A

.github/ISSUE_TEMPLATE/01_bug_ai.yml

@@ -1,7 +1,7 @@
 name: Bug Report (AI)
 description: Zed Agent Panel Bugs
 type: "Bug"
-labels: ["ai"]
+labels: ["area:ai"]
 title: "AI: <a short description of the AI Related bug>"
 body:
   - type: textarea

.github/ISSUE_TEMPLATE/04_bug_debugger.yml

@@ -1,7 +1,7 @@
 name: Bug Report (Debugger)
 description: Zed Debugger-Related Bugs
 type: "Bug"
-labels: ["debugger"]
+labels: ["area:debugger"]
 title: "Debugger: <a short description of the Debugger bug>"
 body:
   - type: textarea

.github/ISSUE_TEMPLATE/06_bug_git.yml

@@ -1,7 +1,7 @@
 name: Bug Report (Git)
 description: Zed Git Related Bugs
 type: "Bug"
-labels: ["git"]
+labels: ["area:integrations/git"]
 title: "Git: <a short description of the Git bug>"
 body:
   - type: textarea

.github/ISSUE_TEMPLATE/07_bug_windows.yml

@@ -1,7 +1,7 @@
 name: Bug Report (Windows)
 description: Zed Windows Related Bugs
 type: "Bug"
-labels: ["windows"]
+labels: ["platform:windows"]
 title: "Windows: <a short description of the Windows bug>"
 body:
   - type: textarea