feat: settings matching information

[jobara]

What this PR does

• Fix teal border not handled by contrast themes
• Create a policy to only show to individual users and for now only on local and dev environments
• Use the policy to restrict access to the matching/demographics route
• Add link to matching from an Individual user's settings page
• Use the policy to restrict displaying matching link
• Enabled password confirmation middleware on matching/demographics route
• Style/update password confirmation dialog as needed, if possible
• Implement matching "landing" page
• Implement matching "add/edit" page
• Implement placeholder for "how matching works" page

Prerequisites

If this PR changes PHP code or dependencies:

• I've run composer format and fixed any code formatting issues.
• I've run composer analyze and addressed any static analysis issues.
• I've run php artisan test and ensured that all tests pass.
• I've run composer localize to update localization source files and committed any changes.

If this PR changes CSS or JavaScript code or dependencies:

• I've run npm run lint and fixed any linting issues.
• I've run npm run build and ensured that CSS and JavaScript assets can be compiled.

[codecov]

Codecov Report

Merging #1460 (e12a6e5) into dev (9e07ca8) will decrease coverage by 0.10%.
The diff coverage is 0.00%.

@@             Coverage Diff              @@
##                dev    #1460      +/-   ##
============================================
- Coverage     96.56%   96.46%   -0.10%     
- Complexity     1841     1844       +3     
============================================
  Files           282      282              
  Lines          5994     6000       +6     
============================================
  Hits           5788     5788              
- Misses          206      212       +6     

Impacted Files	Coverage Δ
app/Http/Controllers/SettingsController.php	96.77% <0.00%> (-2.76%)	⬇️

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