refined-github/refined-github 26.9 on GitHub

extensible-nav has finally been enabled by default for all.
bugs-tab, releases-tab, and extend-repo-tabs depend on this feature so they're all enabled now.

`pr-from-branch` - New feature by @fregante in #9995	`delete-branch` - New feature by @Sebastien-Ahkrin in #9974
Lets you open a PR in one click on the branch.	Adds a button to delete the current branch on the branch page.

table-input - Restore feature in PR page by @kovsu in #10002
linkify-text - Avoid error in organization Discussions by @fregante in #9971
quick-review - Restore on GHE by @robinovitch61 in #9976
shorten-links - Avoid duplicate hash/query for certain URLs by @hyldmo in #10025
repo-header-info - Remove stargazers link when unavailable by @kerollosy in #9965
repo-header-info - Avoid breaking layout if token is missing by @fregante in #10021
html-preview-link - Fix button style by @Sebastien-Ahkrin in #9956
prevent-link-loss - Workaround disappearing field Chrome bug by @Sebastien-Ahkrin in #9970
quick-comment-edit - Disable on hidden comments by @fregante in #10024
quick-comment-edit - Improve support of repeated issue edits by @fregante in #10017
monospace-textareas - Restore feature by @fregante in #9906
pull-request-hotkeys - Restore feature by @fregante in #10009
clean-conversation-headers - Fix base branch detection by @Sebastien-Ahkrin in #9957
comments-time-machine-links - Restore support for Issues by @libaojiang in #10018
conversation-activity-filter - Clean up state by @fregante in #9999
Restore GHE key validation in options page by @fregante in #9967

hide-inactive-deployments - Also hide failed deployments by @ShayanMuhammad-CS in #10013