Fix post-feed reply composer width: #divComposer was nested in #divThread and re-applied 80% (560px); now fills parent (700px)

The composer wrapper defaults to width:60% (post-composer.css). Adding
layout:'inline' applies the --inline class which sets width:100%.

www/js/version.json

@@ -1,5 +1,5 @@
 {
-  "VERSION": "v0.7.35",
-  "VERSION_NUMBER": "0.7.35",
-  "BUILD_DATE": "2026-06-26T01:18:47.392Z"
+  "VERSION": "v0.7.39",
+  "VERSION_NUMBER": "0.7.39",
+  "BUILD_DATE": "2026-06-26T11:26:09.788Z"
 }

www/post-feed.html

@@ -40,13 +40,19 @@
 
     #divBackBar,
     #divHint,
-    #divThread,
-    #divComposer {
+    #divThread {
       width: 80%;
       min-width: 300px;
       max-width: 700px;
     }
 
+    /* #divComposer lives INSIDE #divThread (already constrained to 700px),
+       so it must fill its parent (100%) rather than re-applying 80%
+       which would shrink it to 80% of 700 = 560px. */
+    #divComposer {
+      width: 100%;
+    }
+
     #divBackBar {
       display: flex;
       align-items: center;
@@ -110,6 +116,8 @@
     }
 
     .topPostComposerInput {
+      width: 100%;
+      box-sizing: border-box;
       min-height: 6em;
       padding: 8px;
       line-height: 1.4;