feat: pr template, dependabot

.github/CODEOWNERS.txt

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+# Automatically request review from the Mobile Engineering team
+* @smileidentity/mobile

.github/dependabot.yaml

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+# https://docs.github.com/en/code-security/dependabot/dependabot-version-updates/configuration-options-for-the-dependabot.yml-file
+version: 2
+updates:
+  - package-ecosystem: "pub"
+    directory: "/"
+    schedule:
+      interval: "weekly"
+      time: "10:00"
+      timezone: "America/Los_Angeles"

.github/pull_request_template.md

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+Story: https://app.shortcut.com/smileid/story/xxx
+
+## Summary
+
+A few sentences/bullet points about the changes
+
+## Known Issues
+
+Any shortcomings in your work. This may include corner cases not correctly handled or issues related
+to but not within the scope of your PR. Design compromises should be discussed here if they were not
+already discussed above.
+
+## Test Instructions
+
+Concise test instructions on how to verify that your feature works as intended. This should include
+changes to the development environment (if applicable) and all commands needed to run your work.
+
+## Screenshot
+
+If applicable (e.g. UI changes), add screenshots to help explain your work.