Clean up time_ago_since, add tests, and internationalize strings

Changelog-Changed: Internationalized time ago strings
Signed-off-by: Terry Yiu <git@tyiu.xyz>

assets/translations/en-US/main.ftl

@@ -145,6 +145,27 @@ Copy_Pubkey_9cc4 = Copy Pubkey
 # Copy the text content of the note to clipboard
 Copy_Text_f81c = Copy Text
 
+# Relative time in days
+count_d_b9be = {$count}d
+
+# Relative time in hours
+count_h_3ecb = {$count}h
+
+# Relative time in minutes
+count_m_b41e = {$count}m
+
+# Relative time in months
+count_mo_7aba = {$count}mo
+
+# Relative time in seconds
+count_s_aa26 = {$count}s
+
+# Relative time in weeks
+count_w_7468 = {$count}w
+
+# Relative time in years
+count_y_9408 = {$count}y
+
 # Button to create a new account
 Create_Account_6994 = Create Account
 
@@ -346,6 +367,9 @@ Notifications_d673 = Notifications
 # Title for notifications column
 Notifications_ef56 = Notifications
 
+# Relative time for very recent events (less than 3 seconds)
+now_2181 = now
+
 # Button label to open email client
 Open_Email_25e9 = Open Email
 

assets/translations/en-XA/main.ftl

@@ -145,6 +145,27 @@ Copy_Pubkey_9cc4 = {"["}Çópy Púbkéy{"]"}
 # Copy the text content of the note to clipboard
 Copy_Text_f81c = {"["}Çópy Téxt{"]"}
 
+# Relative time in days
+count_d_b9be = {"["}{$count}d{"]"}
+
+# Relative time in hours
+count_h_3ecb = {"["}{$count}h{"]"}
+
+# Relative time in minutes
+count_m_b41e = {"["}{$count}m{"]"}
+
+# Relative time in months
+count_mo_7aba = {"["}{$count}mó{"]"}
+
+# Relative time in seconds
+count_s_aa26 = {"["}{$count}s{"]"}
+
+# Relative time in weeks
+count_w_7468 = {"["}{$count}w{"]"}
+
+# Relative time in years
+count_y_9408 = {"["}{$count}y{"]"}
+
 # Button to create a new account
 Create_Account_6994 = {"["}Çréàté Àççóúñt{"]"}
 
@@ -346,6 +367,9 @@ Notifications_d673 = {"["}Ñótífíçàtíóñs{"]"}
 # Title for notifications column
 Notifications_ef56 = {"["}Ñótífíçàtíóñs{"]"}
 
+# Relative time for very recent events (less than 3 seconds)
+now_2181 = {"["}ñów{"]"}
+
 # Button label to open email client
 Open_Email_25e9 = {"["}Ópéñ Émàíl{"]"}