[FIX] mail: various ui improvements/fixes

* chat windows:
  - input was kicked out of the window on chrome 43
  - don't animate if folded by default (e.g. after a refresh)
  - width and height 100% like in the frontend
  - z-index to make sure that they are over bootstrap active btn,
    but below notifications, and modals

* chatter:
  - internal note: send button renammed to 'Log'
  - send button is the first button again
  - remove annoying form view widget's tooltip

* client action: focus on composer on channel change

1 files changed, 9 insertions, 3 deletions

diff --git a/addons/mail/static/src/less/chat_window.less b/addons/mail/static/src/less/chat_window.less
index f37b66f85ff..ca2e8ca74f1 100644
--- a/addons/mail/static/src/less/chat_window.less
+++ b/addons/mail/static/src/less/chat_window.less
@@ -5,11 +5,14 @@
     .o-flex-flow(column, nowrap);
     position: fixed;
     width: 300px;
+    max-width: 100%;
     height: 400px;
+    max-height: 100%;
     font-size: 12px;
     background-color: @o-chat-window-bg;
     border: 1px solid gray;
     border-radius: 3px;
+    z-index: 2;
 
     @media (max-width: @screen-xs-max) {
         display:none;
@@ -56,8 +59,11 @@
         }
     }
 
-    .o_chat_input > input {
-        padding: 5px;
-        width: 100%;
+    .o_chat_input {
+        .o-flex(0, 0, auto);
+        > input {
+            padding: 5px;
+            width: 100%;
+        }
     }
 }