Fixed: Preferred words remove button in Firefox

Fixes #3710

frontend/src/Components/Form/KeyValueListInputItem.css

@@ -8,7 +8,16 @@
   }
 }
 
+.inputWrapper {
+  flex: 1 0 0;
+}
+
+.buttonWrapper {
+  flex: 0 0 22px;
+}
+
 .keyInput,
 .valueInput {
+  width: 100%;
   border: none;
 }

frontend/src/Components/Form/KeyValueListInputItem.js

@@ -63,33 +63,39 @@ class KeyValueListInputItem extends Component {
 
     return (
       <div className={styles.itemContainer}>
-        <TextInput
-          className={styles.keyInput}
-          name="key"
-          value={keyValue}
-          placeholder={keyPlaceholder}
-          onChange={this.onKeyChange}
-          onFocus={this.onFocus}
-          onBlur={this.onBlur}
-        />
-
-        <TextInput
-          className={styles.valueInput}
-          name="value"
-          value={value}
-          placeholder={valuePlaceholder}
-          onChange={this.onValueChange}
-          onFocus={this.onFocus}
-          onBlur={this.onBlur}
-        />
+        <div className={styles.inputWrapper}>
+          <TextInput
+            className={styles.keyInput}
+            name="key"
+            value={keyValue}
+            placeholder={keyPlaceholder}
+            onChange={this.onKeyChange}
+            onFocus={this.onFocus}
+            onBlur={this.onBlur}
+          />
+        </div>
+
+        <div className={styles.inputWrapper}>
+          <TextInput
+            className={styles.valueInput}
+            name="value"
+            value={value}
+            placeholder={valuePlaceholder}
+            onChange={this.onValueChange}
+            onFocus={this.onFocus}
+            onBlur={this.onBlur}
+          />
+        </div>
 
         {
           !isNew &&
-            <IconButton
-              name={icons.REMOVE}
-              tabIndex={-1}
-              onPress={this.onRemovePress}
-            />
+            <div className={styles.buttonWrapper}>
+              <IconButton
+                name={icons.REMOVE}
+                tabIndex={-1}
+                onPress={this.onRemovePress}
+              />
+            </div>
         }
       </div>
     );

frontend/src/Series/Details/EpisodeRow.css

@@ -13,7 +13,7 @@
 .episodeNumber {
   composes: cell from '~Components/Table/Cells/TableRowCell.css';
 
-  width: 70px;
+  width: 65px;
 }
 
 .size {