add flag for logging a contribution as a trade

src/views/ProjectViewView.vue

@@ -162,7 +162,7 @@
         </h3>
 
         <div v-if="offersToThis.length === 0">
-          (None yet. Record one above.)
+          (None yet. Wanna offer something if others join you?)
         </div>
 
         <ul v-else class="text-sm border-t border-slate-300">
@@ -197,7 +197,9 @@
       <div class="bg-slate-100 px-4 py-3 rounded-md">
         <h3 class="text-sm uppercase font-semibold mb-3">Given To This Idea</h3>
 
-        <div v-if="givesToThis.length === 0">(None yet. Record one above.)</div>
+        <div v-if="givesToThis.length === 0">
+          (None yet. You can be the first.)
+        </div>
 
         <ul v-else class="text-sm border-t border-slate-300">
           <li