CSS improvements: fixing filter on kanban page

Signed-off-by: Stephan Richter <s.richter@srsoftware.de>

web/src/main/resources/web/css/bloodshed-color.css

@@ -130,6 +130,10 @@ tr:hover .taglist .tag button {
     background-color: #d3ff00;
 }
 
+.kanban .filter{
+    background: rgba(0,0,0,0.7);
+ }
+
 .position_selector{
     background-color: rgba(0,0,0,0.7);
     backdrop-filter: blur(3px);

web/src/main/resources/web/css/bloodshed.css

@@ -15,9 +15,10 @@ body {
     background-position: 98% 70px;
     background-attachment: fixed;
 }
-
+.code,
 code {
     font-size: 16px;
+    font-family: monospace;
 }
 
 fieldset {
@@ -228,9 +229,11 @@ textarea{
 }
 
 .kanban .filter{
-    position: absolute;
-    top: 60px;
+    position: fixed;
+    top: 84px;
     right: 20px;
+    padding: 5px;
+    z-index: 100;
 }
 
 .kanban.description{

web/src/main/resources/web/css/default-color.css

@@ -141,6 +141,10 @@ code,
     background-color: #d3ff00;
 }
 
+.kanban .filter{
+    background: rgba(0,0,0,0.7);
+ }
+
 .position_selector{
     background-color: rgba(0,0,0,0.7);
     backdrop-filter: blur(3px);

web/src/main/resources/web/css/default.css

@@ -322,9 +322,11 @@ textarea{
 }
 
 .kanban .filter{
-    position: absolute;
-    top: 60px;
+    position: fixed;
+    top: 84px;
     right: 20px;
+    padding: 5px;
+    z-index: 100;
 }
 
 .kanban.description{

web/src/main/resources/web/css/winter-color.css

@@ -68,6 +68,7 @@ tr:hover .taglist .tag button {
     color: black;
 }
 
+code,
 .code{
 	color: black;
 }
@@ -119,6 +120,10 @@ tr:hover .taglist .tag button {
     background-color: #d3ff00;
 }
 
+.kanban .filter{
+    background: rgba(255,255,255,0.7);
+ }
+
 .position_selector{
     background-color: rgba(0,0,0,0.7);
     backdrop-filter: blur(3px);

web/src/main/resources/web/css/winter.css

@@ -15,9 +15,10 @@ body {
     background-position: 98% 70px;
     background-attachment: fixed;
 }
-
+.code,
 code {
     font-size: 16px;
+    font-family: monospace;
 }
 
 fieldset {
@@ -321,9 +322,11 @@ textarea{
 }
 
 .kanban .filter{
-    position: absolute;
-    top: 60px;
+    position: fixed;
+    top: 84px;
     right: 20px;
+    padding: 5px;
+    z-index: 100;
 }
 
 .kanban.description{