Add index.html pages to the router paths

[brianlove]

Add cases to the Reach Router config to accomodate the /index.html URLs, ensuring that they are redirected appropriately to the canonical versions (/company/123-FOO/index.html redirects to /company/123-FOO/).

[github-actions[bot]]

No need for rebasing :+1: behind_count is 0 ahead_count is 1

[github-actions[bot]]

☂️ Python Coverage

current status: ✅

Overall Coverage

Lines	Covered	Coverage	Threshold	Status
597	426	71%	0%	🟢

New Files

No new covered files...

Modified Files

No covered modified files...

updated for commit: fe78dfd by action🐍

[github-actions[bot]]

JavaScript Coverage

Summary

Lines	Statements	Branches	Functions
	67.96% (420/618)	55.61% (223/401)	69.94% (135/193)

Modified Files • (67%)

File	% Stmts	% Branch	% Funcs	% Lines	Uncovered Line #s
All files	67.96	55.61	69.94	67.75

report-only-changed-files is enabled. No files were changed in this commit :)