Mobile: Cell size icon missing, headers works

- Add lc_tableautofitmenu.svg
(used in the context menu when inside of a cell)
- Sometimes headers do not get properly set from JS:
missing "justify-content: space-between;" and so set it in the CSS side

Change-Id: If383b15fc5920f1074c6eb88dd45bd2667095d66
Reviewed-on: https://gerrit.libreoffice.org/c/online/+/101481
Tested-by: Jenkins
Tested-by: Jenkins CollaboraOffice <jenkinscollaboraoffice@gmail.com>
Reviewed-by: Pedro Silva <pedro.silva@collabora.com>

loleaflet/css/mobilewizard.css

@@ -316,6 +316,7 @@ p.mobile-wizard.ui-combobox-text.selected {
 	flex-direction: row;
 	align-items: center;
 	background-color: #fff;
+	justify-content: space-between;
 }
 
 .ui-header.mobile-wizard.disabled .ui-header-left * {

loleaflet/images/lc_tableautofitmenu.svg

@@ -0,0 +1 @@
+<svg viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><path d="m9 6v15h6v-15z" fill="#fff"/><path d="m8 2v1 3 15 1h1 6v-1-3-1-3-1-3-1-3-4h-6zm1 4h5v3h-5zm0 4h5v3h-5zm0 4h5v3h-5zm0 4h5v3h-5z" fill="#808080"/><g fill="#4d82b8" fill-rule="evenodd"><path d="m17.501947 12.990234c.12976.0036.253031.05754.34375.150391l3.957031 3.957031c.260944.199523.261914.592163.002.792969l-.0059.0039-3.953125 3.953125c-.471254.490833-1.197864-.235777-.707031-.707031l3.146485-3.146484h-4.285157v-1h4.285157l-3.146485-3.146485c-.325269-.318004-.09144-.869893.363275-.857416z"/><path d="m5.4971046 12.990234c-.12976.0036-.253031.05754-.34375.150391l-3.9570313 3.957031c-.26094396.199523-.26191396.592163-.002.792969l.0059.0039 3.9531253 3.953125c.471254.490833 1.197864-.235777.707031-.707031l-3.1464853-3.146484h4.2851573v-1h-4.2851573l3.1464853-3.146485c.325269-.318004.09144-.869893-.363275-.857416z"/></g></svg>