Grants - Require login on some views and help_text on all model attrs

[mbeacom]

Description

The goal of this PR is to introduce i18n compliant help_text on all model fields and require login for profile specific views: new, profile, milestones, fund, and subscription_cancel

Checklist

• linter status: 100% pass
• changes don't break existing behavior
• commit message follows commit guidelines

Affected core subsystem(s)

grants, subscriptions, models, views

Testing

Locall

[codecov]

Codecov Report

Merging #2485 into grants will decrease coverage by 0.04%.
The diff coverage is 92.68%.

@@            Coverage Diff             @@
##           grants    #2485      +/-   ##
==========================================
- Coverage   29.71%   29.67%   -0.05%     
==========================================
  Files         154      154              
  Lines       12104    12108       +4     
  Branches     1616     1617       +1     
==========================================
- Hits         3597     3593       -4     
- Misses       8389     8397       +8     
  Partials      118      118

Impacted Files	Coverage Δ
app/grants/models.py	93.22% <100%> (ø)	⬆️
app/grants/views.py	22.22% <100%> (+0.85%)	⬆️
app/dashboard/views.py	13.04% <25%> (+0.06%)	⬆️
app/dashboard/embed.py	28.16% <0%> (-3.45%)	⬇️

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