client/css: fix lists in comments css inheritance

Markdown lists in comments inherited some unwanted CSS rules. The fix is
to make the culprit rules apply to more specific elements.

client/css/core-forms.styl

@@ -4,17 +4,15 @@ form
     display: block
     width: 20em
 
-    ul
+    .input
         list-style-type: none
-        margin: 0 0 1em 0
+        margin: 0 0 2em 0
         padding: 0
         li
             margin-top: 1.2em
         label
             display: block
             padding: 0.3em 0
-    .input
-        margin-bottom: 2em
     .input li:first-child label:not(.radio):not(.checkbox):not(.file-dropper),
     .input li:first-child
         padding-top: 0

client/css/post-list-view.styl

@@ -106,7 +106,7 @@
     text-align: left
 
     label
-        display: none
+        display: none !important
     form
         width: auto
         margin-bottom: 0.75em

client/css/post-upload.styl

@@ -39,6 +39,10 @@ $cancel-button-color = tomato
         margin-top: 1em
 
     .uploadables-container
+        list-style-type: none
+        margin: 0
+        padding: 0
+
         li
             margin: 0 0 1.2em 0
 

client/css/tag-input-control.styl

@@ -87,7 +87,8 @@ div.tag-input
 
 ul.compact-tags
     width: 100%
-    margin-top: 0.5em
+    margin: 0.5em 0 0 0
+    padding: 0
     li
         margin: 0
         width: 100%

client/css/tag-list-view.styl

@@ -41,7 +41,7 @@
 
 .tag-list-header
     label
-        display: none
+        display: none !important
     text-align: left
     form
         width: auto

client/css/user-list-view.styl

@@ -28,7 +28,7 @@
 
 .user-list-header
     label
-        display: none
+        display: none !important
     text-align: left
     form
         width: auto