Add two missing tooltips: add-tag button and add-field button (#4306)

* add tooltip to field add button

* Update EditTemplate.multids

* Update EditTemplate.multids

* add tooltip to tag-picker add button

core/language/en-GB/EditTemplate.multids

@@ -8,6 +8,7 @@ Field/Remove/Hint: Remove field
 Field/Dropdown/Caption: field list
 Field/Dropdown/Hint: Show field list
 Fields/Add/Button: add
+Fields/Add/Button/Hint: add field
 Fields/Add/Name/Placeholder: field name
 Fields/Add/Prompt: Add a new field:
 Fields/Add/Value/Placeholder: field value
@@ -16,6 +17,7 @@ Fields/Add/Dropdown/User: User fields
 Shadow/Warning: This is a shadow tiddler. Any changes you make will override the default version from the plugin <<pluginLink>>
 Shadow/OverriddenWarning: This is a modified shadow tiddler. You can revert to the default version in the plugin <<pluginLink>> by deleting this tiddler
 Tags/Add/Button: add
+Tags/Add/Button/Hint: add tag
 Tags/Add/Placeholder: tag name
 Tags/Dropdown/Caption: tag list
 Tags/Dropdown/Hint: Show tag list

core/ui/EditTemplate/fields.tid

@@ -13,7 +13,7 @@ $:/config/EditTemplateFields/Visibility/$(currentField)$
 \define new-field()
 <$vars name={{$:/temp/newfieldname}}>
 <$reveal type="nomatch" text="" default=<<name>>>
-<$button>
+<$button tooltip=<<lingo Fields/Add/Button/Hint>>>
 <$action-sendmessage $message="tm-add-field"
 $name=<<name>>
 $value={{$:/temp/newfieldvalue}}/>

core/wiki/macros/tag-picker.tid

@@ -7,7 +7,7 @@ tags: $:/tags/Macro
 \end
 
 \define tag-button()
-<$button class="tc-btn-invisible" tag="a">
+<$button class="tc-btn-invisible" tag="a" tooltip={{$:/language/EditTemplate/Tags/Add/Button/Hint}}>
 $(actions)$
 <$action-deletetiddler $tiddler="$:/temp/NewTagName"/>
 <$macrocall $name="tag-pill" tag=<<tag>>/>