Addressed an issue with Place.rb (Terrastories#449)

* Update seeds.rb

Stories were not loading properly: They needed at least one associated speaker to pass validation.

Co-authored-by: Ian <ian.norris.1991@gmail.com>
Co-authored-by: Oliver <o.hamuy@wustl.edu>
Co-authored-by: Katherine <kfhenry@wustl.edu>
Co-authored-by: maebeale <maebeale@gmail.com>

* Added bounds to the lat and long variables

This addresses issue Terrastories#442, and prevents users from editing places such that their lat and long variables exceed the normal bounds to latitudinal and longitudinal coordinates

Co-authored-by: Ian <ian.norris.1991@gmail.com>
Co-authored-by: Oliver <o.hamuy@wustl.edu>
Co-authored-by: Katherine <kfhenry@wustl.edu>
Co-authored-by: maebeale <maebeale@gmail.com>

rails/app/models/place.rb

@@ -5,6 +5,8 @@ class Place < ApplicationRecord
   has_and_belongs_to_many :stories
   has_one_attached :photo
   validate :photo_format
+  validates :lat, numericality: { greater_than_or_equal_to:  -90, less_than_or_equal_to:  90 }
+  validates :long, numericality: { greater_than_or_equal_to: -180, less_than_or_equal_to: 180 }
   has_many :interview_stories, class_name: "Story", foreign_key: "interview_location_id"
 
   attr_reader :point_geojson