Update documentation and permalinks for consistency and clarity

- Changed references in markup.md to update "data.html" to "data/" for clarity.
- Updated metadata.md to correct the link to the general documentation.
- Modified navbar.md to ensure stub values match the new permalink structure.
- Adjusted tables.md to reflect the new permalink for the table visualization page.
- Updated about.md to change the permalink from "/about.html" to "/about/" and revised content for clarity and impact.
- Changed browse.md permalink from "/browse.html" to "/browse/" for consistency.
- Added copyright.md page with copyright information and terms of use.
- Updated data.md to change permalink from "/data.html" to "/data/" and added introductory content.
- Created donate.md page to facilitate donations and acknowledge supporters.
- Updated locations.md permalink from "/locations.html" to "/locations/" for consistency.
- Changed map.md permalink from "/map.html" to "/map/" for uniformity.
- Added erasure.md page discussing the historical context of Black queer Kansas Citians.
- Updated out-there.md to correct the link to Lea Hopkins' interview.
- Changed subjects.md permalink from "/subjects.html" to "/subjects/" for consistency.
- Updated timeline.md permalink from "/timeline.html" to "/timeline/" for uniformity.

_includes/index/featured-terms.html

@@ -47,7 +47,7 @@
         {% if include.title %}<{{ include.heading_level | default: 'h2' | strip }} class="card-title h5">{{ include.title }}</{{ include.heading_level | default: 'h2' | strip }}>{% endif %}
         <p class="card-text">
             {% for s in topTerms %}
-            <a class="btn btn-sm btn-{{ include.btn-color | default: 'primary' }} m-1" href="{{ s | strip | url_param_escape | prepend: ':' | prepend: termsField | prepend: '/browse.html#' | relative_url }}">{{ s | strip }}</a>{% endfor %}
+            <a class="btn btn-sm btn-{{ include.btn-color | default: 'primary' }} m-1" href="{{ s | strip | url_param_escape | prepend: ':' | prepend: termsField | prepend: '/browse/#' | relative_url }}">{{ s | strip }}</a>{% endfor %}
         </p>
     </div>
 </div>