GitLab

for some reason `-e` gets interpreted literally at CI.
This removes its use making the output look the same everywhere.
CI will now show diff if uncommited changes to make it easier to see what
caused CI to fail.

- Links to direct CIDs now have ?filename= param to preserve name and content type
- When page is loaded on DNSLink website (based on Host header) then
  there is no public gateway endpoint.
  As a replacement, clicking on a CID opens it at cid.ipfs.io

Context: https://github.com/ipfs/dir-index-html/issues/42

Closes #42

feat: Build script

This adds GithubAction that  runs the build and checks for any unstaged
changes. This ensures `src/dir-index.html` match the output `dir-index.html`
in the main directory.

Co-authored-by: Peter Rabbitson <ribasushi@protocol.ai>

Reconcile dir-index.html and dir-index-uncat.html

Replaces style.css from style used in head of dir-index.html; replaces html in dir-index-uncat with that from dir-index

[BOUNTY] Directory page UI improvements

This is necessary to support subdomain resolution.

E.g. {cid}.ipfs.localhost

The presence of additional content in the table was causing the width of the
type-icon column to be reduced. Applying the width to the column and it's
contents prevents this from happening.

Add base64 favicon and social sharing meta tags

Co-authored-by: Marcin Rataj <lidel@lidel.org>

Co-authored-by: Marcin Rataj <lidel@lidel.org>