Fix broken FAQ links: update Oakland, Fremont, and Census data sources (#136)

### 📜 Description

- Describe the general shape of this PR (new feature? refactor? bug fix?
one-line change?)
Bug fix

- Describe what changes are being made
Updated broken links in the FAQ page:
- Replaced deprecated American FactFinder with data.census.gov
- Updated Oakland Open Data Portal link to official site
- Replaced Fremont GIS portal with CA Open Data filtered results

- Describe why these changes are being made
Some links in the FAQ were outdated or no longer accessible, which
negatively impacts user experience.

- List the use cases and edge cases relevant to this PR
Users accessing FAQ links will now be directed to valid and working data
sources.

- Describe how errors will be handled. How will we know if this code
breaks in production
Low risk change. Only static links were updated. Any issue would be
visible immediately if links fail to open.

- Describe any external libraries/dependencies added or removed in this
PR
None

- Describe any security risks are there regarding this change
None

- Describe how you tested these changes
Manually opened and verified each updated link in the browser.

- Link to relevant external documentation
https://data.census.gov/
https://www.oaklandca.gov/topics/data
https://data.ca.gov/search?q=fremont


--------------------------
### 📋 Mandatory Checklist

- [x] Linked to the Github Issues being addressed using the right
sidebar ➡️
- [ ] Have you discussed these changes with the project leader(s)?
- [x] Do all variable and function names communicate what they do?
- [x] Were all the changes commented and / or documented?
- [x] Is the PR the right size?
- [x] Does all work in progress, temporary, or debugger code have a TODO
comment with links to Github issues?
- [ ] *If you changed the user interface, did you add before and after
screenshots to below?*

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### 🖼️ Screenshots and Screen Recordings

#### Before
N/A

#### After
N/A
<!--- Add after screenshots here -->
<img width="1440" height="900" alt="Screen Shot 2026-03-27 at 7 08 58
AM"
src="https://github.com/user-attachments/assets/91f5991a-5fd2-40e4-8d5e-fd0a7ff0f50e"
/>


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### 📘 Glossary
- PR = Pull Request

Author: MHUGGLER

faq.html

@@ -144,19 +144,18 @@ <h4>Other sources in the region</h4>
                 Data Portal</a></li>
         <li><a href="https://datasf.org/opendata/" target="_blank" rel="noopener noref">San Fransico Open
                 Data Portal</a></li>
-        <li><a href="https://data.oaklandnet.com/" target="_blank" rel="noopener noref">Oakland Open Data
+        <li><a href="https://data.oaklandca.gov/" target="_blank" rel="noopener noref">Oakland Open Data
                 Portal</a></li>
-        <li><a href="http://egis-cofgis.opendata.arcgis.com/" target="_blank" rel="noopener noref">Fremont
-                Open GIS Data Portal</a></li>
+        <li><a href="https://fremont-ca-open-data-cofgis.hub.arcgis.com/" target="_blank" rel="noopener noref">City of Fremont Open Data Portal</a></li>
         <li><a href="https://data.acgov.org/" target="_blank" rel="noopener noref">Alameda County Open Data
                 Portal</a></li>
     </ul>
     <h4>Federal Data Sources</h4>
     <ul>
         <li><a href="https://www.data.gov/" target="_blank" rel="noopener noref">U.S. Government open data
                 portal</a></li>
-        <li>U.S. Census Data on <a href="https://factfinder.census.gov/faces/nav/jsf/pages/index.xhtml"
-                target="_blank" rel="noopener noref">American Factfinder</a> or via
+        <li>U.S. Census Data on <a href="https://data.census.gov/"
+                target="_blank" rel="noopener noref">data.census.gov</a> or via
             the <a href="https://www.census.gov/developers/">Census API</a></li>
         <li>Third-party
             sources of U.S Census Data such as