Default keybindings fixes (f3 reserved by jdt)

plugins/org.jkiss.dbeaver.core.application/plugin.xml

@@ -190,6 +190,9 @@
               name="%productName"
               parentId="org.eclipse.ui.defaultAcceleratorConfiguration"/>
 
+        <!-- Text editors -->
+        <key commandId="org.jkiss.dbeaver.core.sql.editor.open" schemeId="org.jkiss.dbeaver.defaultKeyScheme" sequence="F3"/>
+
         <!-- Text editors -->
         <key commandId="org.eclipse.ui.edit.text.contentAssist.proposals" contextId="org.eclipse.ui.contexts.window" schemeId="org.jkiss.dbeaver.defaultKeyScheme" sequence="CTRL+SPACE"/>
         <key commandId="org.eclipse.ui.edit.text.hippieCompletion" contextId="org.eclipse.ui.contexts.window" schemeId="org.jkiss.dbeaver.defaultKeyScheme" sequence="CTRL+SHIFT+SPACE"/>

plugins/org.jkiss.dbeaver.core/plugin.xml

@@ -770,6 +770,12 @@
         </handler>
 
         <handler commandId="org.jkiss.dbeaver.core.sql.editor.open" class="org.jkiss.dbeaver.ui.editors.sql.handlers.OpenSQLEditorHandler">
+            <activeWhen>
+                <or>
+                    <reference definitionId="org.jkiss.dbeaver.core.ui.navigator.part"/>
+                    <reference definitionId="org.jkiss.dbeaver.core.ui.datasource.editor"/>
+                </or>
+            </activeWhen>
             <enabledWhen>
                 <with variable="activePart">
                     <test property="org.jkiss.dbeaver.core.global.hasActiveProject"/>
@@ -1715,7 +1721,6 @@
 
         <!-- SQL Editor -->
         <key commandId="org.jkiss.dbeaver.core.sql.editor.open" schemeId="org.eclipse.ui.defaultAcceleratorConfiguration" sequence="CTRL+L"/>
-        <key commandId="org.jkiss.dbeaver.core.sql.editor.open" schemeId="org.eclipse.ui.defaultAcceleratorConfiguration" sequence="F3"/>
         <key commandId="org.jkiss.dbeaver.core.sql.editor.recent" schemeId="org.eclipse.ui.defaultAcceleratorConfiguration" sequence="CTRL+Enter"/>
         <key commandId="org.jkiss.dbeaver.core.sql.editor.create" schemeId="org.eclipse.ui.defaultAcceleratorConfiguration" sequence="CTRL+ALT+L"/>
         <key