Fix missing translations in config menu

Closes #374

app/templates/index.html

@@ -116,11 +116,11 @@
 				</div>
 				<div class="config-div config-div-near">
 					<label for="config-near">{{ translation['config-near'] }}: </label>
-					<input type="text" name="near" id="config-near" placeholder="City Name" value="{{ config.near }}">
+					<input type="text" name="near" id="config-near" placeholder="{{ translation['config-near-help'] }}" value="{{ config.near }}">
 				</div>
 				<div class="config-div config-div-block">
 					<label for="config-block">{{ translation['config-block'] }}: </label>
-					<input type="text" name="block" id="config-block" placeholder="Comma-separated site list" value="{{ config.block }}">
+					<input type="text" name="block" id="config-block" placeholder="{{ translation['config-block-help'] }}" value="{{ config.block }}">
 				</div>
 				<div class="config-div config-div-nojs">
 					<label for="config-nojs">{{ translation['config-nojs'] }}: </label>