Forum post text style fixes.

assets/css/misuzu/embed.css

@@ -376,15 +376,3 @@
 .aembedph-play-external-link:active {
     background-color: var(--background-colour-translucent-5);
 }
-
-.iembed {
-    display: inline-block;
-    overflow: hidden;
-    text-shadow: initial;
-    vertical-align: baseline;
-}
-.iembed img {
-    vertical-align: middle;
-    max-width: 100%;
-    max-height: 900px
-}

assets/css/misuzu/forum/post.css

@@ -46,15 +46,11 @@
 }
 
 .forum__post__text {
-    margin: 2px;
-    line-height: 1.2em;
+    padding: 2px;
+    line-height: 1.4em;
     flex: 1 1 auto;
-    overflow: auto;
 }
-.forum__post__text--edit { 
-    /* figure out why this is needed */
-    max-width: calc(100% - 4px);
-    min-width: calc(100% - 4px);
+.forum__post__text--edit {
     margin: 2px 2px 0;
     min-height: 400px;
     height: 100%;
@@ -66,6 +62,12 @@
     font-family: inherit;
 }
 
+.forum__post__text img {
+    vertical-align: middle;
+    max-width: 100%;
+    max-height: 900px
+}
+
 .forum__post__info__content {
     width: 150px;
     text-align: center;
@@ -173,6 +175,8 @@
 }
 .forum__post__signature img {
     vertical-align: middle;
+    max-width: 100%;
+    max-height: 150px;
 }
 
 .forum__post__badge {

assets/js/misuzu/forum/editor.js

@@ -92,7 +92,7 @@ Misuzu.Forum.Editor.init = function() {
                 postingPreview.removeAttribute('hidden');
                 postingText.setAttribute('hidden', 'hidden');
                 previewButton.value = 'back';
-                previewButton.textContent = 'Back';
+                previewButton.textContent = 'Edit';
                 postingMode.dataset.original = postingMode.textContent;
                 postingMode.textContent = 'Previewing';
                 return;