new client various fixes: all users now see challenge progress, changes to create strings, etc (#9078)

* adjust how User > Profile is referred to

* change "Create" to "Add Task" in a Challenge's page

* remove commented-out code for making a Group Plan cost Gems (there should be no Gem cost)

* split 'create' locales string into multiple strings for different purposes

- Allows text to be changed individually for each purpose.
- Assists translators in determining the best translation.
- Makes it easier to find locations in code for each string.

* remove "public" option for Group Plan creation modal

* allow all users to see challenge participant progress

website/client/components/groups/discovery.vue

@@ -13,7 +13,7 @@
             b-dropdown-item(v-for='sortOption in sortOptions', :key="sortOption.value", @click='sort(sortOption.value)') {{sortOption.text}}
         button.btn.btn-secondary.create-group-button.float-right(@click='createGroup()')
           .svg-icon.positive-icon(v-html="icons.positiveIcon")
-          span(v-once) {{$t('create')}}
+          span(v-once) {{$t('createGuild2')}}
     .row
       .col-md-12
         public-guild-item(v-for="guild in filteredGuilds", :key='guild._id', :guild="guild", :display-leave='true')