feat: Major refactor, implement web, caching, better tests and build files

* Update golang version to 1.24
* Update multiarch Dockerfile to be more ISA agnostic
* Refactor existing code and properly structure project into modules
* Get rid of global variables except where necessary (go:embed)
* Add default values to Config
* Add webserver with templates to finally correctly serve videos and gifs
* Add tiny caching library to decrease api load and improve latency
* Improve Webhook data preparation by filtering out redundant links
  from the tweet text and properly attaching videos and gifs in separate
  webhook request by utilising new webserver
* Improve tests for filter function
* Improve bake definition for easier CI integration

pkg/cache/cache.go

@@ -0,0 +1,52 @@
+package cache
+
+import (
+	"sync"
+	"time"
+)
+
+type Cache[K comparable, V any] struct {
+	data map[K]entry[K, V]
+	lock sync.RWMutex
+}
+
+type entry[K comparable, V any] struct {
+	value      V
+	expiration time.Time
+}
+
+func New[K comparable, V any]() *Cache[K, V] {
+	return &Cache[K, V]{
+		data: make(map[K]entry[K, V]),
+	}
+}
+
+func (c *Cache[K, V]) Set(key K, value V, ttl time.Duration) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+
+	c.data[key] = entry[K, V]{
+		value:      value,
+		expiration: time.Now().Add(ttl),
+	}
+}
+
+func (c *Cache[K, V]) Get(key K) (V, bool) {
+	c.lock.RLock()
+	defer c.lock.RUnlock()
+
+	entry, ok := c.data[key]
+	if !ok || time.Now().After(entry.expiration) {
+		delete(c.data, key)
+		var zero V
+		return zero, false
+	}
+
+	return entry.value, true
+}
+
+func (c *Cache[K, V]) Delete(key K) {
+	c.lock.Lock()
+	defer c.lock.Unlock()
+	delete(c.data, key)
+}