feat: display filter mode next to tags title in filters

Author: TristanMarion

frontend/src/html/pages/account.html

@@ -512,6 +512,15 @@
           <div class="title">
             <i class="fas fa-tag"></i>
             tags
+            <span
+              class="tagsFilterModeToggle"
+              data-balloon-pos="right"
+              data-balloon-length="large"
+              aria-label="Tag filter mode: OR (any selected tag must match), AND (all selected tags must match)"
+            >
+              <i class="fas fa-filter"></i>
+              <span class="mode-text">OR</span>
+            </span>
           </div>
           <div class="select filterGroup" group="tags"></div>
         </div>

frontend/src/styles/account.scss

@@ -375,6 +375,26 @@
           margin-right: 0.5em;
         }
       }
+
+      &.tags {
+        .title {
+          align-items: baseline;
+
+          .tagsFilterModeToggle {
+            margin-left: 0.5rem;
+            cursor: pointer;
+            opacity: 0.5;
+            transition: 0.125s;
+            display: flex;
+            align-items: center;
+            font-size: 0.8em;
+
+            &:hover {
+              opacity: 1;
+            }
+          }
+        }
+      }
     }
 
     &.presetFilterButtons {