Add search autocomplete (#53)

* Implement search autocomplete for recent searches

* Implement search autocomplete for bookmarks

* Fix URL encoding of query param

* Add tag suggestions to search autocomplete

Co-authored-by: Sascha Ißbrücker <sissbruecker@lyska.io>

bookmarks/components/util.js

@@ -0,0 +1,37 @@
+export function debounce(callback, delay = 250) {
+    let timeoutId
+    return (...args) => {
+        clearTimeout(timeoutId)
+        timeoutId = setTimeout(() => {
+            timeoutId = null
+            callback(...args)
+        }, delay)
+    }
+}
+
+export function clampText(text, maxChars = 30) {
+    if(!text || text.length <= 30) return text
+
+    return text.substr(0, maxChars) + '...'
+}
+
+export function getCurrentWordBounds(input) {
+    const text = input.value;
+    const end = input.selectionStart;
+    let start = end;
+
+    let currentChar = text.charAt(start - 1);
+
+    while (currentChar && currentChar !== ' ' && start > 0) {
+        start--;
+        currentChar = text.charAt(start - 1);
+    }
+
+    return {start, end};
+}
+
+export function getCurrentWord(input) {
+    const bounds = getCurrentWordBounds(input);
+
+    return input.value.substring(bounds.start, bounds.end);
+}